24 Strings library [strings]

24.5 Null-terminated sequence utilities [c.strings]

24.5.6 Multibyte / wide string and character conversion functions [c.mb.wcs]

[Note
:
The headers <cstdlib> and <cwchar> declare the functions described in this subclause.
end note
]
int mbsinit(const mbstate_t* ps); int mblen(const char* s, size_t n); size_t mbstowcs(wchar_t* pwcs, const char* s, size_t n); size_t wcstombs(char* s, const wchar_t* pwcs, size_t n);
Effects: These functions have the semantics specified in the C standard library.
See also: ISO C 7.
22.
7.
1, 7.
22.
8, 7.
29.
6.
2.
1
int mbtowc(wchar_t* pwc, const char* s, size_t n); int wctomb(char* s, wchar_t wchar);
Effects: These functions have the semantics specified in the C standard library.
Remarks: Calls to these functions may introduce a data race ([res.on.data.races]) with other calls to the same function.
See also: ISO C 7.
22.
7
size_t mbrlen(const char* s, size_t n, mbstate_t* ps); size_t mbrtowc(wchar_t* pwc, const char* s, size_t n, mbstate_t* ps); size_t wcrtomb(char* s, wchar_t wc, mbstate_t* ps); size_t mbsrtowcs(wchar_t* dst, const char** src, size_t len, mbstate_t* ps); size_t wcsrtombs(char* dst, const wchar_t** src, size_t len, mbstate_t* ps);
Effects: These functions have the semantics specified in the C standard library.
Remarks: Calling these functions with an mbstate_­t* argument that is a null pointer value may introduce a data race ([res.on.data.races]) with other calls to the same function with an mbstate_­t* argument that is a null pointer value.
See also: ISO C 7.
29.
6.
3