- Generated by
1.8.8
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libstdc++
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Public Types | |
| typedef _Alloc | allocator_type |
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typedef __gnu_cxx::__normal_iterator < const_pointer, basic_string > | const_iterator |
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typedef _CharT_alloc_type::const_pointer | const_pointer |
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typedef _CharT_alloc_type::const_reference | const_reference |
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typedef std::reverse_iterator < const_iterator > | const_reverse_iterator |
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typedef _CharT_alloc_type::difference_type | difference_type |
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typedef __gnu_cxx::__normal_iterator < pointer, basic_string > | iterator |
| typedef _CharT_alloc_type::pointer | pointer |
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typedef _CharT_alloc_type::reference | reference |
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typedef std::reverse_iterator < iterator > | reverse_iterator |
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typedef _CharT_alloc_type::size_type | size_type |
| typedef _Traits | traits_type |
| typedef _Traits::char_type | value_type |
Public Member Functions | |
| basic_string () | |
| basic_string (const _Alloc &__a) | |
| basic_string (const basic_string &__str) | |
| basic_string (const basic_string &__str, size_type __pos, size_type __n=npos) | |
| basic_string (const basic_string &__str, size_type __pos, size_type __n, const _Alloc &__a) | |
| basic_string (const _CharT *__s, size_type __n, const _Alloc &__a=_Alloc()) | |
| basic_string (const _CharT *__s, const _Alloc &__a=_Alloc()) | |
| basic_string (size_type __n, _CharT __c, const _Alloc &__a=_Alloc()) | |
| basic_string (basic_string &&__str) noexcept | |
| basic_string (initializer_list< _CharT > __l, const _Alloc &__a=_Alloc()) | |
| template<class _InputIterator > | |
| basic_string (_InputIterator __beg, _InputIterator __end, const _Alloc &__a=_Alloc()) | |
| ~basic_string () noexcept | |
| basic_string & | append (const basic_string &__str) |
| basic_string & | append (const basic_string &__str, size_type __pos, size_type __n) |
| basic_string & | append (const _CharT *__s, size_type __n) |
| basic_string & | append (const _CharT *__s) |
| basic_string & | append (size_type __n, _CharT __c) |
| basic_string & | append (initializer_list< _CharT > __l) |
| template<class _InputIterator > | |
| basic_string & | append (_InputIterator __first, _InputIterator __last) |
| basic_string & | assign (const basic_string &__str) |
| basic_string & | assign (basic_string &&__str) |
| basic_string & | assign (const basic_string &__str, size_type __pos, size_type __n) |
| basic_string & | assign (const _CharT *__s, size_type __n) |
| basic_string & | assign (const _CharT *__s) |
| basic_string & | assign (size_type __n, _CharT __c) |
| template<class _InputIterator > | |
| basic_string & | assign (_InputIterator __first, _InputIterator __last) |
| basic_string & | assign (initializer_list< _CharT > __l) |
| const_reference | at (size_type __n) const |
| reference | at (size_type __n) |
| reference | back () |
| const_reference | back () const noexcept |
| iterator | begin () |
| const_iterator | begin () const noexcept |
| const _CharT * | c_str () const noexcept |
| size_type | capacity () const noexcept |
| const_iterator | cbegin () const noexcept |
| const_iterator | cend () const noexcept |
| void | clear () |
| int | compare (const basic_string &__str) const |
| int | compare (size_type __pos, size_type __n, const basic_string &__str) const |
| int | compare (size_type __pos1, size_type __n1, const basic_string &__str, size_type __pos2, size_type __n2) const |
| int | compare (const _CharT *__s) const |
| int | compare (size_type __pos, size_type __n1, const _CharT *__s) const |
| int | compare (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2) const |
| size_type | copy (_CharT *__s, size_type __n, size_type __pos=0) const |
| const_reverse_iterator | crbegin () const noexcept |
| const_reverse_iterator | crend () const noexcept |
| const _CharT * | data () const noexcept |
| bool | empty () const noexcept |
| iterator | end () |
| const_iterator | end () const noexcept |
| basic_string & | erase (size_type __pos=0, size_type __n=npos) |
| iterator | erase (iterator __position) |
| iterator | erase (iterator __first, iterator __last) |
| size_type | find (const _CharT *__s, size_type __pos, size_type __n) const |
| size_type | find (const basic_string &__str, size_type __pos=0) const noexcept |
| size_type | find (const _CharT *__s, size_type __pos=0) const |
| size_type | find (_CharT __c, size_type __pos=0) const noexcept |
| size_type | find_first_not_of (const basic_string &__str, size_type __pos=0) const noexcept |
| size_type | find_first_not_of (const _CharT *__s, size_type __pos, size_type __n) const |
| size_type | find_first_not_of (const _CharT *__s, size_type __pos=0) const |
| size_type | find_first_not_of (_CharT __c, size_type __pos=0) const noexcept |
| size_type | find_first_of (const basic_string &__str, size_type __pos=0) const noexcept |
| size_type | find_first_of (const _CharT *__s, size_type __pos, size_type __n) const |
| size_type | find_first_of (const _CharT *__s, size_type __pos=0) const |
| size_type | find_first_of (_CharT __c, size_type __pos=0) const noexcept |
| size_type | find_last_not_of (const basic_string &__str, size_type __pos=npos) const noexcept |
| size_type | find_last_not_of (const _CharT *__s, size_type __pos, size_type __n) const |
| size_type | find_last_not_of (const _CharT *__s, size_type __pos=npos) const |
| size_type | find_last_not_of (_CharT __c, size_type __pos=npos) const noexcept |
| size_type | find_last_of (const basic_string &__str, size_type __pos=npos) const noexcept |
| size_type | find_last_of (const _CharT *__s, size_type __pos, size_type __n) const |
| size_type | find_last_of (const _CharT *__s, size_type __pos=npos) const |
| size_type | find_last_of (_CharT __c, size_type __pos=npos) const noexcept |
| reference | front () |
| const_reference | front () const noexcept |
| allocator_type | get_allocator () const noexcept |
| void | insert (iterator __p, size_type __n, _CharT __c) |
| template<class _InputIterator > | |
| void | insert (iterator __p, _InputIterator __beg, _InputIterator __end) |
| void | insert (iterator __p, initializer_list< _CharT > __l) |
| basic_string & | insert (size_type __pos1, const basic_string &__str) |
| basic_string & | insert (size_type __pos1, const basic_string &__str, size_type __pos2, size_type __n) |
| basic_string & | insert (size_type __pos, const _CharT *__s, size_type __n) |
| basic_string & | insert (size_type __pos, const _CharT *__s) |
| basic_string & | insert (size_type __pos, size_type __n, _CharT __c) |
| iterator | insert (iterator __p, _CharT __c) |
| size_type | length () const noexcept |
| size_type | max_size () const noexcept |
| basic_string & | operator+= (const basic_string &__str) |
| basic_string & | operator+= (const _CharT *__s) |
| basic_string & | operator+= (_CharT __c) |
| basic_string & | operator+= (initializer_list< _CharT > __l) |
| basic_string & | operator= (const basic_string &__str) |
| basic_string & | operator= (const _CharT *__s) |
| basic_string & | operator= (_CharT __c) |
| basic_string & | operator= (basic_string &&__str) |
| basic_string & | operator= (initializer_list< _CharT > __l) |
| const_reference | operator[] (size_type __pos) const noexcept |
| reference | operator[] (size_type __pos) |
| void | pop_back () |
| void | push_back (_CharT __c) |
| reverse_iterator | rbegin () |
| const_reverse_iterator | rbegin () const noexcept |
| reverse_iterator | rend () |
| const_reverse_iterator | rend () const noexcept |
| basic_string & | replace (size_type __pos, size_type __n, const basic_string &__str) |
| basic_string & | replace (size_type __pos1, size_type __n1, const basic_string &__str, size_type __pos2, size_type __n2) |
| basic_string & | replace (size_type __pos, size_type __n1, const _CharT *__s, size_type __n2) |
| basic_string & | replace (size_type __pos, size_type __n1, const _CharT *__s) |
| basic_string & | replace (size_type __pos, size_type __n1, size_type __n2, _CharT __c) |
| basic_string & | replace (iterator __i1, iterator __i2, const basic_string &__str) |
| basic_string & | replace (iterator __i1, iterator __i2, const _CharT *__s, size_type __n) |
| basic_string & | replace (iterator __i1, iterator __i2, const _CharT *__s) |
| basic_string & | replace (iterator __i1, iterator __i2, size_type __n, _CharT __c) |
| template<class _InputIterator > | |
| basic_string & | replace (iterator __i1, iterator __i2, _InputIterator __k1, _InputIterator __k2) |
| basic_string & | replace (iterator __i1, iterator __i2, _CharT *__k1, _CharT *__k2) |
| basic_string & | replace (iterator __i1, iterator __i2, const _CharT *__k1, const _CharT *__k2) |
| basic_string & | replace (iterator __i1, iterator __i2, iterator __k1, iterator __k2) |
| basic_string & | replace (iterator __i1, iterator __i2, const_iterator __k1, const_iterator __k2) |
| basic_string & | replace (iterator __i1, iterator __i2, initializer_list< _CharT > __l) |
| void | reserve (size_type __res_arg=0) |
| void | resize (size_type __n, _CharT __c) |
| void | resize (size_type __n) |
| size_type | rfind (const basic_string &__str, size_type __pos=npos) const noexcept |
| size_type | rfind (const _CharT *__s, size_type __pos, size_type __n) const |
| size_type | rfind (const _CharT *__s, size_type __pos=npos) const |
| size_type | rfind (_CharT __c, size_type __pos=npos) const noexcept |
| void | shrink_to_fit () noexcept |
| size_type | size () const noexcept |
| basic_string | substr (size_type __pos=0, size_type __n=npos) const |
| void | swap (basic_string &__s) |
Static Public Attributes | |
| static const size_type | npos |
Managing sequences of characters and character-like objects.
| _CharT | Type of character |
| _Traits | Traits for character type, defaults to char_traits<_CharT>. |
| _Alloc | Allocator type, defaults to allocator<_CharT>. |
Meets the requirements of a container, a reversible container, and a sequence. Of the optional sequence requirements, only push_back, at, and array access are supported.
Documentation? What's that? Nathan Myers ncm@cantrip.org.
A string looks like this:
Where the _M_p points to the first character in the string, and you cast it to a pointer-to-_Rep and subtract 1 to get a pointer to the header.
This approach has the enormous advantage that a string object requires only one allocation. All the ugliness is confined within a single pair of inline functions, which each compile to a single add instruction: _Rep::_M_data(), and string::_M_rep(); and the allocation function which gets a block of raw bytes and with room enough and constructs a _Rep object at the front.
The reason you want _M_data pointing to the character array and not the _Rep is so that the debugger can see the string contents. (Probably we should add a non-inline member to get the _Rep for the debugger to use, so users can check the actual string length.)
Note that the _Rep object is a POD so that you can have a static empty string _Rep object already constructed before static constructors have run. The reference-count encoding is chosen so that a 0 indicates one reference, so you never try to destroy the empty-string _Rep object.
All but the last paragraph is considered pretty conventional for a C++ string implementation.
Definition at line 112 of file basic_string.h.
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inline |
Default constructor creates an empty string.
Definition at line 442 of file basic_string.h.
Referenced by std::basic_string< _CharT >::substr().
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explicit |
Construct an empty string using allocator a.
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | const basic_string< _CharT, _Traits, _Alloc > & | __str | ) |
Construct string with copy of value of str.
| __str | Source string. |
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | const basic_string< _CharT, _Traits, _Alloc > & | __str, |
| size_type | __pos, | ||
| size_type | __n = npos |
||
| ) |
Construct string as copy of a substring.
| __str | Source string. |
| __pos | Index of first character to copy from. |
| __n | Number of characters to copy (default remainder). |
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | const basic_string< _CharT, _Traits, _Alloc > & | __str, |
| size_type | __pos, | ||
| size_type | __n, | ||
| const _Alloc & | __a | ||
| ) |
Construct string as copy of a substring.
| __str | Source string. |
| __pos | Index of first character to copy from. |
| __n | Number of characters to copy. |
| __a | Allocator to use. |
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | const _CharT * | __s, |
| size_type | __n, | ||
| const _Alloc & | __a = _Alloc() |
||
| ) |
Construct string initialized by a character array.
| __s | Source character array. |
| __n | Number of characters to copy. |
| __a | Allocator to use (default is default allocator). |
NB: __s must have at least __n characters, '\0' has no special meaning.
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | const _CharT * | __s, |
| const _Alloc & | __a = _Alloc() |
||
| ) |
Construct string as copy of a C string.
| __s | Source C string. |
| __a | Allocator to use (default is default allocator). |
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | size_type | __n, |
| _CharT | __c, | ||
| const _Alloc & | __a = _Alloc() |
||
| ) |
Construct string as multiple characters.
| __n | Number of characters. |
| __c | Character to use. |
| __a | Allocator to use (default is default allocator). |
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inlinenoexcept |
Move construct string.
| __str | Source string. |
The newly-created string contains the exact contents of __str. __str is a valid, but unspecified string.
Definition at line 512 of file basic_string.h.
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | initializer_list< _CharT > | __l, |
| const _Alloc & | __a = _Alloc() |
||
| ) |
Construct string from an initializer list.
| __l | std::initializer_list of characters. |
| __a | Allocator to use (default is default allocator). |
| std::basic_string< _CharT, _Traits, _Alloc >::basic_string | ( | _InputIterator | __beg, |
| _InputIterator | __end, | ||
| const _Alloc & | __a = _Alloc() |
||
| ) |
Construct string as copy of a range.
| __beg | Start of range. |
| __end | End of range. |
| __a | Allocator to use (default is default allocator). |
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inlinenoexcept |
Destroy the string instance.
Definition at line 546 of file basic_string.h.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append | ( | const basic_string< _CharT, _Traits, _Alloc > & | __str | ) |
Append a string to this string.
| __str | The string to append. |
Referenced by std::basic_string< _CharT >::append(), std::operator+(), and std::basic_string< _CharT >::operator+=().
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append | ( | const basic_string< _CharT, _Traits, _Alloc > & | __str, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) |
Append a substring.
| __str | The string to append. |
| __pos | Index of the first character of str to append. |
| __n | The number of characters to append. |
| std::out_of_range | if __pos is not a valid index. |
This function appends __n characters from __str starting at __pos to this string. If __n is is larger than the number of available characters in __str, the remainder of __str is appended.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append | ( | const _CharT * | __s, |
| size_type | __n | ||
| ) |
Append a C substring.
| __s | The C string to append. |
| __n | The number of characters to append. |
|
inline |
Append a C string.
| __s | The C string to append. |
Definition at line 1023 of file basic_string.h.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::append | ( | size_type | __n, |
| _CharT | __c | ||
| ) |
Append multiple characters.
| __n | The number of characters to append. |
| __c | The character to use. |
Appends __n copies of __c to this string.
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inline |
Append an initializer_list of characters.
| __l | The initializer_list of characters to append. |
Definition at line 1047 of file basic_string.h.
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inline |
Append a range of characters.
| __first | Iterator referencing the first character to append. |
| __last | Iterator marking the end of the range. |
Appends characters in the range [__first,__last) to this string.
Definition at line 1061 of file basic_string.h.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign | ( | const basic_string< _CharT, _Traits, _Alloc > & | __str | ) |
Set value to contents of another string.
| __str | Source string to use. |
Referenced by std::basic_string< _CharT >::assign(), and std::basic_string< _CharT >::operator=().
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inline |
Set value to contents of another string.
| __str | Source string to use. |
This function sets this string to the exact contents of __str. __str is a valid, but unspecified string.
Definition at line 1097 of file basic_string.h.
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inline |
Set value to a substring of a string.
| __str | The string to use. |
| __pos | Index of the first character of str. |
| __n | Number of characters to use. |
| std::out_of_range | if pos is not a valid index. |
This function sets this string to the substring of __str consisting of __n characters at __pos. If __n is is larger than the number of available characters in __str, the remainder of __str is used.
Definition at line 1118 of file basic_string.h.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::assign | ( | const _CharT * | __s, |
| size_type | __n | ||
| ) |
Set value to a C substring.
| __s | The C string to use. |
| __n | Number of characters to use. |
This function sets the value of this string to the first __n characters of __s. If __n is is larger than the number of available characters in __s, the remainder of __s is used.
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inline |
Set value to contents of a C string.
| __s | The C string to use. |
This function sets the value of this string to the value of __s. The data is copied, so there is no dependence on __s once the function returns.
Definition at line 1146 of file basic_string.h.
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inline |
Set value to multiple characters.
| __n | Length of the resulting string. |
| __c | The character to use. |
This function sets the value of this string to __n copies of character __c.
Definition at line 1162 of file basic_string.h.
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inline |
Set value to a range of characters.
| __first | Iterator referencing the first character to append. |
| __last | Iterator marking the end of the range. |
Sets value of string to characters in the range [__first,__last).
Definition at line 1175 of file basic_string.h.
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inline |
Set value to an initializer_list of characters.
| __l | The initializer_list of characters to assign. |
Definition at line 1185 of file basic_string.h.
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inline |
Provides access to the data contained in the string.
| __n | The index of the character to access. |
| std::out_of_range | If n is an invalid index. |
This function provides for safer data access. The parameter is first checked that it is in the range of the string. The function throws out_of_range if the check fails.
Definition at line 875 of file basic_string.h.
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inline |
Provides access to the data contained in the string.
| __n | The index of the character to access. |
| std::out_of_range | If n is an invalid index. |
This function provides for safer data access. The parameter is first checked that it is in the range of the string. The function throws out_of_range if the check fails. Success results in unsharing the string.
Definition at line 897 of file basic_string.h.
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inline |
Returns a read/write reference to the data at the last element of the string.
Definition at line 930 of file basic_string.h.
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inlinenoexcept |
Returns a read-only (constant) reference to the data at the last element of the string.
Definition at line 938 of file basic_string.h.
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inline |
Returns a read/write iterator that points to the first character in the string. Unshares the string.
Definition at line 614 of file basic_string.h.
Referenced by std::basic_string< _CharT >::crend(), std::regex_match(), std::regex_replace(), std::regex_search(), and std::basic_string< _CharT >::rend().
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inlinenoexcept |
Returns a read-only (constant) iterator that points to the first character in the string.
Definition at line 625 of file basic_string.h.
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inlinenoexcept |
Return const pointer to null-terminated contents.
This is a handle to internal data. Do not modify or dire things may happen.
Definition at line 1819 of file basic_string.h.
Referenced by std::operator==(), and std::regex_replace().
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inlinenoexcept |
Returns the total number of characters that the string can hold before needing to allocate more memory.
Definition at line 785 of file basic_string.h.
Referenced by std::basic_string< _CharT >::push_back(), and std::basic_string< _CharT >::shrink_to_fit().
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inlinenoexcept |
Returns a read-only (constant) iterator that points to the first character in the string.
Definition at line 689 of file basic_string.h.
|
inlinenoexcept |
Returns a read-only (constant) iterator that points one past the last character in the string.
Definition at line 697 of file basic_string.h.
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inline |
Erases the string, making it empty.
Definition at line 813 of file basic_string.h.
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inline |
Compare to a string.
| __str | String to compare against. |
Returns an integer < 0 if this string is ordered before __str, 0 if their values are equivalent, or > 0 if this string is ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of size() and str.size(). The function then compares the two strings by calling traits::compare(data(), str.data(),rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.
Definition at line 2244 of file basic_string.h.
Referenced by std::sub_match< _Bi_iter >::compare(), std::operator<(), std::operator<=(), std::operator==(), std::operator>(), and std::operator>=().
| int std::basic_string< _CharT, _Traits, _Alloc >::compare | ( | size_type | __pos, |
| size_type | __n, | ||
| const basic_string< _CharT, _Traits, _Alloc > & | __str | ||
| ) | const |
Compare substring to a string.
| __pos | Index of first character of substring. |
| __n | Number of characters in substring. |
| __str | String to compare against. |
Form the substring of this string from the __n characters starting at __pos. Returns an integer < 0 if the substring is ordered before __str, 0 if their values are equivalent, or > 0 if the substring is ordered after __str. Determines the effective length rlen of the strings to compare as the smallest of the length of the substring and __str.size(). The function then compares the two strings by calling traits::compare(substring.data(),str.data(),rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.
| int std::basic_string< _CharT, _Traits, _Alloc >::compare | ( | size_type | __pos1, |
| size_type | __n1, | ||
| const basic_string< _CharT, _Traits, _Alloc > & | __str, | ||
| size_type | __pos2, | ||
| size_type | __n2 | ||
| ) | const |
Compare substring to a substring.
| __pos1 | Index of first character of substring. |
| __n1 | Number of characters in substring. |
| __str | String to compare against. |
| __pos2 | Index of first character of substring of str. |
| __n2 | Number of characters in substring of str. |
Form the substring of this string from the __n1 characters starting at __pos1. Form the substring of __str from the __n2 characters starting at __pos2. Returns an integer < 0 if this substring is ordered before the substring of __str, 0 if their values are equivalent, or > 0 if this substring is ordered after the substring of __str. Determines the effective length rlen of the strings to compare as the smallest of the lengths of the substrings. The function then compares the two strings by calling traits::compare(substring.data(),str.substr(pos2,n2).data(),rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.
| int std::basic_string< _CharT, _Traits, _Alloc >::compare | ( | const _CharT * | __s | ) | const |
Compare to a C string.
| __s | C string to compare against. |
Returns an integer < 0 if this string is ordered before __s, 0 if their values are equivalent, or > 0 if this string is ordered after __s. Determines the effective length rlen of the strings to compare as the smallest of size() and the length of a string constructed from __s. The function then compares the two strings by calling traits::compare(data(),s,rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.
| int std::basic_string< _CharT, _Traits, _Alloc >::compare | ( | size_type | __pos, |
| size_type | __n1, | ||
| const _CharT * | __s | ||
| ) | const |
Compare substring to a C string.
| __pos | Index of first character of substring. |
| __n1 | Number of characters in substring. |
| __s | C string to compare against. |
Form the substring of this string from the __n1 characters starting at pos. Returns an integer < 0 if the substring is ordered before __s, 0 if their values are equivalent, or > 0 if the substring is ordered after __s. Determines the effective length rlen of the strings to compare as the smallest of the length of the substring and the length of a string constructed from __s. The function then compares the two string by calling traits::compare(substring.data(),__s,rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.
| int std::basic_string< _CharT, _Traits, _Alloc >::compare | ( | size_type | __pos, |
| size_type | __n1, | ||
| const _CharT * | __s, | ||
| size_type | __n2 | ||
| ) | const |
Compare substring against a character array.
| __pos | Index of first character of substring. |
| __n1 | Number of characters in substring. |
| __s | character array to compare against. |
| __n2 | Number of characters of s. |
Form the substring of this string from the __n1 characters starting at __pos. Form a string from the first __n2 characters of __s. Returns an integer < 0 if this substring is ordered before the string from __s, 0 if their values are equivalent, or > 0 if this substring is ordered after the string from __s. Determines the effective length rlen of the strings to compare as the smallest of the length of the substring and __n2. The function then compares the two strings by calling traits::compare(substring.data(),s,rlen). If the result of the comparison is nonzero returns it, otherwise the shorter one is ordered first.
NB: s must have at least n2 characters, '\0' has no special meaning.
| size_type std::basic_string< _CharT, _Traits, _Alloc >::copy | ( | _CharT * | __s, |
| size_type | __n, | ||
| size_type | __pos = 0 |
||
| ) | const |
Copy substring into C string.
| __s | C string to copy value into. |
| __n | Number of characters to copy. |
| __pos | Index of first character to copy. |
| std::out_of_range | If __pos > size(). |
Copies up to __n characters starting at __pos into the C string __s. If __pos is greater than size(), out_of_range is thrown.
|
inlinenoexcept |
Returns a read-only (constant) reverse iterator that points to the last character in the string. Iteration is done in reverse element order.
Definition at line 706 of file basic_string.h.
|
inlinenoexcept |
Returns a read-only (constant) reverse iterator that points to one before the first character in the string. Iteration is done in reverse element order.
Definition at line 715 of file basic_string.h.
|
inlinenoexcept |
Return const pointer to contents.
This is a handle to internal data. Do not modify or dire things may happen.
Definition at line 1829 of file basic_string.h.
Referenced by std::basic_string< _CharT >::compare(), std::basic_string< _CharT >::find(), std::basic_string< _CharT >::find_first_not_of(), std::basic_string< _CharT >::find_last_of(), std::match_results< _Bi_iter >::format(), and std::regex_traits< _Ch_type >::transform().
|
inlinenoexcept |
Returns true if the string is empty. Equivalent to *this == "".
Definition at line 821 of file basic_string.h.
|
inline |
Returns a read/write iterator that points one past the last character in the string. Unshares the string.
Definition at line 633 of file basic_string.h.
Referenced by std::basic_string< _CharT >::crbegin(), std::basic_string< _CharT >::rbegin(), std::regex_match(), std::regex_replace(), and std::regex_search().
|
inlinenoexcept |
Returns a read-only (constant) iterator that points one past the last character in the string.
Definition at line 644 of file basic_string.h.
|
inline |
Remove characters.
| __pos | Index of first character to remove (default 0). |
| __n | Number of characters to remove (default remainder). |
| std::out_of_range | If pos is beyond the end of this string. |
Removes __n characters from this string starting at __pos. The length of the string is reduced by __n. If there are < __n characters to remove, the remainder of the string is truncated. If __p is beyond end of string, out_of_range is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1380 of file basic_string.h.
Referenced by std::basic_string< _CharT >::pop_back().
|
inline |
Remove one character.
| __position | Iterator referencing the character to remove. |
Removes the character at __position from this string. The value of the string doesn't change if an error is thrown.
Definition at line 1396 of file basic_string.h.
| iterator std::basic_string< _CharT, _Traits, _Alloc >::erase | ( | iterator | __first, |
| iterator | __last | ||
| ) |
Remove a range of characters.
| __first | Iterator referencing the first character to remove. |
| __last | Iterator referencing the end of the range. |
Removes the characters in the range [first,last) from this string. The value of the string doesn't change if an error is thrown.
| size_type std::basic_string< _CharT, _Traits, _Alloc >::find | ( | const _CharT * | __s, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) | const |
Find position of a C substring.
| __s | C string to locate. |
| __pos | Index of character to search from. |
| __n | Number of characters from s to search for. |
Starting from __pos, searches forward for the first __n characters in __s within this string. If found, returns the index where it begins. If not found, returns npos.
Referenced by std::basic_string< _CharT >::find(), and std::basic_string< _CharT >::find_first_of().
|
inlinenoexcept |
Find position of a string.
| __str | String to locate. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for value of __str within this string. If found, returns the index where it begins. If not found, returns npos.
Definition at line 1865 of file basic_string.h.
|
inline |
Find position of a C string.
| __s | C string to locate. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for the value of __s within this string. If found, returns the index where it begins. If not found, returns npos.
Definition at line 1880 of file basic_string.h.
|
noexcept |
Find position of a character.
| __c | Character to locate. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for __c within this string. If found, returns the index where it was found. If not found, returns npos.
|
inlinenoexcept |
Find position of a character not in string.
| __str | String containing characters to avoid. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for a character not contained in __str within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2098 of file basic_string.h.
Referenced by std::basic_string< _CharT >::find_first_not_of().
| size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_not_of | ( | const _CharT * | __s, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) | const |
Find position of a character not in C substring.
| __s | C string containing characters to avoid. |
| __pos | Index of character to search from. |
| __n | Number of characters from __s to consider. |
Starting from __pos, searches forward for a character not contained in the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.
|
inline |
Find position of a character not in C string.
| __s | C string containing characters to avoid. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for a character not contained in __s within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2129 of file basic_string.h.
|
noexcept |
Find position of a different character.
| __c | Character to avoid. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for a character other than __c within this string. If found, returns the index where it was found. If not found, returns npos.
|
inlinenoexcept |
Find position of a character of string.
| __str | String containing characters to locate. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for one of the characters of __str within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 1971 of file basic_string.h.
Referenced by std::basic_string< _CharT >::find_first_of().
| size_type std::basic_string< _CharT, _Traits, _Alloc >::find_first_of | ( | const _CharT * | __s, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) | const |
Find position of a character of C substring.
| __s | String containing characters to locate. |
| __pos | Index of character to search from. |
| __n | Number of characters from s to search for. |
Starting from __pos, searches forward for one of the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.
|
inline |
Find position of a character of C string.
| __s | String containing characters to locate. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for one of the characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2001 of file basic_string.h.
|
inlinenoexcept |
Find position of a character.
| __c | Character to locate. |
| __pos | Index of character to search from (default 0). |
Starting from __pos, searches forward for the character __c within this string. If found, returns the index where it was found. If not found, returns npos.
Note: equivalent to find(__c, __pos).
Definition at line 2020 of file basic_string.h.
|
inlinenoexcept |
Find last position of a character not in string.
| __str | String containing characters to avoid. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for a character not contained in __str within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2161 of file basic_string.h.
Referenced by std::basic_string< _CharT >::find_last_not_of().
| size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_not_of | ( | const _CharT * | __s, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) | const |
Find last position of a character not in C substring.
| __s | C string containing characters to avoid. |
| __pos | Index of character to search back from. |
| __n | Number of characters from s to consider. |
Starting from __pos, searches backward for a character not contained in the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.
|
inline |
Find last position of a character not in C string.
| __s | C string containing characters to avoid. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for a character not contained in __s within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2192 of file basic_string.h.
|
noexcept |
Find last position of a different character.
| __c | Character to avoid. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for a character other than __c within this string. If found, returns the index where it was found. If not found, returns npos.
|
inlinenoexcept |
Find last position of a character of string.
| __str | String containing characters to locate. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for one of the characters of __str within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2035 of file basic_string.h.
Referenced by std::basic_string< _CharT >::find_last_of().
| size_type std::basic_string< _CharT, _Traits, _Alloc >::find_last_of | ( | const _CharT * | __s, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) | const |
Find last position of a character of C substring.
| __s | C string containing characters to locate. |
| __pos | Index of character to search back from. |
| __n | Number of characters from s to search for. |
Starting from __pos, searches backward for one of the first __n characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.
|
inline |
Find last position of a character of C string.
| __s | C string containing characters to locate. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for one of the characters of __s within this string. If found, returns the index where it was found. If not found, returns npos.
Definition at line 2065 of file basic_string.h.
|
inlinenoexcept |
Find last position of a character.
| __c | Character to locate. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for __c within this string. If found, returns the index where it was found. If not found, returns npos.
Note: equivalent to rfind(__c, __pos).
Definition at line 2084 of file basic_string.h.
|
inline |
Returns a read/write reference to the data at the first element of the string.
Definition at line 914 of file basic_string.h.
|
inlinenoexcept |
Returns a read-only (constant) reference to the data at the first element of the string.
Definition at line 922 of file basic_string.h.
|
inlinenoexcept |
Return copy of allocator used to construct this string.
Definition at line 1836 of file basic_string.h.
Referenced by std::basic_string< _CharT >::basic_string(), and std::basic_string< _CharT >::~basic_string().
|
inline |
Insert multiple characters.
| __p | Iterator referencing location in string to insert at. |
| __n | Number of characters to insert |
| __c | The character to insert. |
| std::length_error | If new length exceeds max_size(). |
Inserts __n copies of character __c starting at the position referenced by iterator __p. If adding characters causes the length to exceed max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1203 of file basic_string.h.
Referenced by std::basic_string< _CharT >::insert().
|
inline |
Insert a range of characters.
| __p | Iterator referencing location in string to insert at. |
| __beg | Start of range. |
| __end | End of range. |
| std::length_error | If new length exceeds max_size(). |
Inserts characters in range [__beg,__end). If adding characters causes the length to exceed max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1220 of file basic_string.h.
|
inline |
Insert an initializer_list of characters.
| __p | Iterator referencing location in string to insert at. |
| __l | The initializer_list of characters to insert. |
| std::length_error | If new length exceeds max_size(). |
Definition at line 1231 of file basic_string.h.
|
inline |
Insert value of a string.
| __pos1 | Iterator referencing location in string to insert at. |
| __str | The string to insert. |
| std::length_error | If new length exceeds max_size(). |
Inserts value of __str starting at __pos1. If adding characters causes the length to exceed max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1251 of file basic_string.h.
|
inline |
Insert a substring.
| __pos1 | Iterator referencing location in string to insert at. |
| __str | The string to insert. |
| __pos2 | Start of characters in str to insert. |
| __n | Number of characters to insert. |
| std::length_error | If new length exceeds max_size(). |
| std::out_of_range | If pos1 > size() or __pos2 > str.size(). |
Starting at pos1, insert __n character of __str beginning with __pos2. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos1 is beyond the end of this string or __pos2 is beyond the end of __str, out_of_range is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1273 of file basic_string.h.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::insert | ( | size_type | __pos, |
| const _CharT * | __s, | ||
| size_type | __n | ||
| ) |
Insert a C substring.
| __pos | Iterator referencing location in string to insert at. |
| __s | The C string to insert. |
| __n | The number of characters to insert. |
| std::length_error | If new length exceeds max_size(). |
| std::out_of_range | If __pos is beyond the end of this string. |
Inserts the first __n characters of __s starting at __pos. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos is beyond end(), out_of_range is thrown. The value of the string doesn't change if an error is thrown.
|
inline |
Insert a C string.
| __pos | Iterator referencing location in string to insert at. |
| __s | The C string to insert. |
| std::length_error | If new length exceeds max_size(). |
| std::out_of_range | If pos is beyond the end of this string. |
Inserts the first n characters of __s starting at __pos. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos is beyond end(), out_of_range is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1314 of file basic_string.h.
|
inline |
Insert multiple characters.
| __pos | Index in string to insert at. |
| __n | Number of characters to insert |
| __c | The character to insert. |
| std::length_error | If new length exceeds max_size(). |
| std::out_of_range | If __pos is beyond the end of this string. |
Inserts __n copies of character __c starting at index __pos. If adding characters causes the length to exceed max_size(), length_error is thrown. If __pos > length(), out_of_range is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1337 of file basic_string.h.
|
inline |
Insert one character.
| __p | Iterator referencing position in string to insert at. |
| __c | The character to insert. |
| std::length_error | If new length exceeds max_size(). |
Inserts character __c at position referenced by __p. If adding character causes the length to exceed max_size(), length_error is thrown. If __p is beyond end of string, out_of_range is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1355 of file basic_string.h.
|
inlinenoexcept |
Returns the number of characters in the string, not including any null-termination.
Definition at line 730 of file basic_string.h.
|
inlinenoexcept |
Returns the size() of the largest possible string.
Definition at line 735 of file basic_string.h.
|
inline |
Append a string to this string.
| __str | The string to append. |
Definition at line 949 of file basic_string.h.
|
inline |
Append a C string.
| __s | The C string to append. |
Definition at line 958 of file basic_string.h.
|
inline |
Append a character.
| __c | The character to append. |
Definition at line 967 of file basic_string.h.
|
inline |
Append an initializer_list of characters.
| __l | The initializer_list of characters to be appended. |
Definition at line 980 of file basic_string.h.
|
inline |
Assign the value of str to this string.
| __str | Source string. |
Definition at line 554 of file basic_string.h.
|
inline |
Copy contents of s into this string.
| __s | Source null-terminated string. |
Definition at line 562 of file basic_string.h.
|
inline |
Set value to string of length 1.
| __c | Source character. |
Assigning to a character makes this string length 1 and (*this)[0] == c.
Definition at line 573 of file basic_string.h.
|
inline |
Move assign the value of str to this string.
| __str | Source string. |
The contents of str are moved into this string (without copying). str is a valid, but unspecified string.
Definition at line 589 of file basic_string.h.
|
inline |
Set value to string constructed from initializer list.
| __l | std::initializer_list. |
Definition at line 601 of file basic_string.h.
|
inlinenoexcept |
Subscript access to the data contained in the string.
| __pos | The index of the character to access. |
This operator allows for easy, array-style, data access. Note that data access with this operator is unchecked and out_of_range lookups are not defined. (For checked lookups see at().)
Definition at line 836 of file basic_string.h.
Referenced by std::basic_string< _CharT >::back(), and std::basic_string< _CharT >::front().
|
inline |
Subscript access to the data contained in the string.
| __pos | The index of the character to access. |
This operator allows for easy, array-style, data access. Note that data access with this operator is unchecked and out_of_range lookups are not defined. (For checked lookups see at().) Unshares the string.
Definition at line 853 of file basic_string.h.
|
inline |
Remove the last character.
The string must be non-empty.
Definition at line 1425 of file basic_string.h.
|
inline |
Append a single character.
| __c | Character to append. |
Definition at line 1069 of file basic_string.h.
Referenced by std::basic_string< _CharT >::operator+=().
|
inline |
Returns a read/write reverse iterator that points to the last character in the string. Iteration is done in reverse element order. Unshares the string.
Definition at line 653 of file basic_string.h.
|
inlinenoexcept |
Returns a read-only (constant) reverse iterator that points to the last character in the string. Iteration is done in reverse element order.
Definition at line 662 of file basic_string.h.
|
inline |
Returns a read/write reverse iterator that points to one before the first character in the string. Iteration is done in reverse element order. Unshares the string.
Definition at line 671 of file basic_string.h.
|
inlinenoexcept |
Returns a read-only (constant) reverse iterator that points to one before the first character in the string. Iteration is done in reverse element order.
Definition at line 680 of file basic_string.h.
|
inline |
Replace characters with value from another string.
| __pos | Index of first character to replace. |
| __n | Number of characters to be replaced. |
| __str | String to insert. |
| std::out_of_range | If pos is beyond the end of this string. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__pos,__pos+__n) from this string. In place, the value of __str is inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of the result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1447 of file basic_string.h.
Referenced by std::basic_string< _CharT >::append(), std::basic_string< _CharT >::assign(), std::basic_string< _CharT >::insert(), and std::basic_string< _CharT >::replace().
|
inline |
Replace characters with value from another string.
| __pos1 | Index of first character to replace. |
| __n1 | Number of characters to be replaced. |
| __str | String to insert. |
| __pos2 | Index of first character of str to use. |
| __n2 | Number of characters from str to use. |
| std::out_of_range | If __pos1 > size() or __pos2 > __str.size(). |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__pos1,__pos1 + n) from this string. In place, the value of __str is inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of the result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1469 of file basic_string.h.
| basic_string& std::basic_string< _CharT, _Traits, _Alloc >::replace | ( | size_type | __pos, |
| size_type | __n1, | ||
| const _CharT * | __s, | ||
| size_type | __n2 | ||
| ) |
Replace characters with value of a C substring.
| __pos | Index of first character to replace. |
| __n1 | Number of characters to be replaced. |
| __s | C string to insert. |
| __n2 | Number of characters from s to use. |
| std::out_of_range | If pos1 > size(). |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__pos,__pos + __n1) from this string. In place, the first __n2 characters of __s are inserted, or all of __s if __n2 is too large. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
|
inline |
Replace characters with value of a C string.
| __pos | Index of first character to replace. |
| __n1 | Number of characters to be replaced. |
| __s | C string to insert. |
| std::out_of_range | If pos > size(). |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__pos,__pos + __n1) from this string. In place, the characters of __s are inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1514 of file basic_string.h.
|
inline |
Replace characters with multiple characters.
| __pos | Index of first character to replace. |
| __n1 | Number of characters to be replaced. |
| __n2 | Number of characters to insert. |
| __c | Character to insert. |
| std::out_of_range | If __pos > size(). |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [pos,pos + n1) from this string. In place, __n2 copies of __c are inserted. If __pos is beyond end of string, out_of_range is thrown. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1538 of file basic_string.h.
|
inline |
Replace range of characters with string.
| __i1 | Iterator referencing start of range to replace. |
| __i2 | Iterator referencing end of range to replace. |
| __str | String value to insert. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__i1,__i2). In place, the value of __str is inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1556 of file basic_string.h.
|
inline |
Replace range of characters with C substring.
| __i1 | Iterator referencing start of range to replace. |
| __i2 | Iterator referencing end of range to replace. |
| __s | C string value to insert. |
| __n | Number of characters from s to insert. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__i1,__i2). In place, the first __n characters of __s are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1575 of file basic_string.h.
|
inline |
Replace range of characters with C string.
| __i1 | Iterator referencing start of range to replace. |
| __i2 | Iterator referencing end of range to replace. |
| __s | C string value to insert. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__i1,__i2). In place, the characters of __s are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1596 of file basic_string.h.
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inline |
Replace range of characters with multiple characters.
| __i1 | Iterator referencing start of range to replace. |
| __i2 | Iterator referencing end of range to replace. |
| __n | Number of characters to insert. |
| __c | Character to insert. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__i1,__i2). In place, __n copies of __c are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1617 of file basic_string.h.
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inline |
Replace range of characters with range.
| __i1 | Iterator referencing start of range to replace. |
| __i2 | Iterator referencing end of range to replace. |
| __k1 | Iterator referencing start of range to insert. |
| __k2 | Iterator referencing end of range to insert. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__i1,__i2). In place, characters in the range [__k1,__k2) are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1641 of file basic_string.h.
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inline |
Replace range of characters with initializer_list.
| __i1 | Iterator referencing start of range to replace. |
| __i2 | Iterator referencing end of range to replace. |
| __l | The initializer_list of characters to insert. |
| std::length_error | If new length exceeds max_size(). |
Removes the characters in the range [__i1,__i2). In place, characters in the range [__k1,__k2) are inserted. If the length of result exceeds max_size(), length_error is thrown. The value of the string doesn't change if an error is thrown.
Definition at line 1710 of file basic_string.h.
| void std::basic_string< _CharT, _Traits, _Alloc >::reserve | ( | size_type | __res_arg = 0 | ) |
Attempt to preallocate enough memory for specified number of characters.
| __res_arg | Number of characters required. |
| std::length_error | If __res_arg exceeds max_size(). |
This function attempts to reserve enough memory for the string to hold the specified number of characters. If the number requested is more than max_size(), length_error is thrown.
The advantage of this function is that if optimal code is a necessity and the user can determine the string length that will be required, the user can reserve the memory in advance, and thus prevent a possible reallocation of memory and copying of string data.
Referenced by std::basic_string< _CharT >::push_back(), and std::basic_string< _CharT >::shrink_to_fit().
| void std::basic_string< _CharT, _Traits, _Alloc >::resize | ( | size_type | __n, |
| _CharT | __c | ||
| ) |
Resizes the string to the specified number of characters.
| __n | Number of characters the string should contain. |
| __c | Character to fill any new elements. |
This function will resize the string to the specified number of characters. If the number is smaller than the string's current size the string is truncated, otherwise the string is extended and new elements are set to __c.
Referenced by std::basic_string< _CharT >::resize().
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inline |
Resizes the string to the specified number of characters.
| __n | Number of characters the string should contain. |
This function will resize the string to the specified length. If the new size is smaller than the string's current size the string is truncated, otherwise the string is extended and new characters are default-constructed. For basic types such as char, this means setting them to 0.
Definition at line 762 of file basic_string.h.
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inlinenoexcept |
Find last position of a string.
| __str | String to locate. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for value of __str within this string. If found, returns the index where it begins. If not found, returns npos.
Definition at line 1910 of file basic_string.h.
Referenced by std::basic_string< _CharT >::find_last_of(), and std::basic_string< _CharT >::rfind().
| size_type std::basic_string< _CharT, _Traits, _Alloc >::rfind | ( | const _CharT * | __s, |
| size_type | __pos, | ||
| size_type | __n | ||
| ) | const |
Find last position of a C substring.
| __s | C string to locate. |
| __pos | Index of character to search back from. |
| __n | Number of characters from s to search for. |
Starting from __pos, searches backward for the first __n characters in __s within this string. If found, returns the index where it begins. If not found, returns npos.
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inline |
Find last position of a C string.
| __s | C string to locate. |
| __pos | Index of character to start search at (default end). |
Starting from __pos, searches backward for the value of __s within this string. If found, returns the index where it begins. If not found, returns npos.
Definition at line 1940 of file basic_string.h.
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noexcept |
Find last position of a character.
| __c | Character to locate. |
| __pos | Index of character to search back from (default end). |
Starting from __pos, searches backward for __c within this string. If found, returns the index where it was found. If not found, returns npos.
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inlinenoexcept |
A non-binding request to reduce capacity() to size().
Definition at line 768 of file basic_string.h.
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inlinenoexcept |
Returns the number of characters in the string, not including any null-termination.
Definition at line 724 of file basic_string.h.
Referenced by std::basic_string< _CharT >::assign(), std::basic_string< _CharT >::at(), std::basic_string< _CharT >::back(), std::basic_string< _CharT >::cend(), std::basic_string< _CharT >::clear(), std::basic_string< _CharT >::compare(), std::basic_string< _CharT >::empty(), std::basic_string< _CharT >::end(), std::basic_string< _CharT >::find(), std::basic_string< _CharT >::find_first_not_of(), std::basic_string< _CharT >::find_last_of(), std::match_results< _Bi_iter >::format(), std::basic_string< _CharT >::insert(), std::basic_string< _CharT >::operator[](), std::basic_string< _CharT >::pop_back(), std::basic_string< _CharT >::push_back(), std::basic_string< _CharT >::replace(), std::basic_string< _CharT >::shrink_to_fit(), and std::regex_traits< _Ch_type >::transform().
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inline |
Get a substring.
| __pos | Index of first character (default 0). |
| __n | Number of characters in substring (default remainder). |
| std::out_of_range | If __pos > size(). |
Construct and return a new string using the __n characters starting at __pos. If the string is too short, use the remainder of the characters. If __pos is beyond the end of the string, out_of_range is thrown.
Definition at line 2225 of file basic_string.h.
| void std::basic_string< _CharT, _Traits, _Alloc >::swap | ( | basic_string< _CharT, _Traits, _Alloc > & | __s | ) |
Swap contents with another string.
| __s | String to swap with. |
Exchanges the contents of this string with that of __s in constant time.
Referenced by std::basic_string< _CharT >::assign(), std::basic_string< _CharT >::operator=(), and std::swap().
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static |
Value returned by various member functions when they fail.
Definition at line 285 of file basic_string.h.
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