[cwchar.syn]

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namespace std { using size_t = see [support.types.layout]; using mbstate_t = see below; using wint_t = see below; struct tm; int fwprintf(FILE* stream, const wchar_t* format, ...); int fwscanf(FILE* stream, const wchar_t* format, ...); int swprintf(wchar_t* s, size_t n, const wchar_t* format, ...); int swscanf(const wchar_t* s, const wchar_t* format, ...); int vfwprintf(FILE* stream, const wchar_t* format, va_list arg); int vfwscanf(FILE* stream, const wchar_t* format, va_list arg); int vswprintf(wchar_t* s, size_t n, const wchar_t* format, va_list arg); int vswscanf(const wchar_t* s, const wchar_t* format, va_list arg); int vwprintf(const wchar_t* format, va_list arg); int vwscanf(const wchar_t* format, va_list arg); int wprintf(const wchar_t* format, ...); int wscanf(const wchar_t* format, ...); wint_t fgetwc(FILE* stream); wchar_t* fgetws(wchar_t* s, int n, FILE* stream); wint_t fputwc(wchar_t c, FILE* stream); int fputws(const wchar_t* s, FILE* stream); int fwide(FILE* stream, int mode); wint_t getwc(FILE* stream); wint_t getwchar(); wint_t putwc(wchar_t c, FILE* stream); wint_t putwchar(wchar_t c); wint_t ungetwc(wint_t c, FILE* stream); double wcstod(const wchar_t* nptr, wchar_t** endptr); float wcstof(const wchar_t* nptr, wchar_t** endptr); long double wcstold(const wchar_t* nptr, wchar_t** endptr); long int wcstol(const wchar_t* nptr, wchar_t** endptr, int base); long long int wcstoll(const wchar_t* nptr, wchar_t** endptr, int base); unsigned long int wcstoul(const wchar_t* nptr, wchar_t** endptr, int base); unsigned long long int wcstoull(const wchar_t* nptr, wchar_t** endptr, int base); wchar_t* wcscpy(wchar_t* s1, const wchar_t* s2); wchar_t* wcsncpy(wchar_t* s1, const wchar_t* s2, size_t n); wchar_t* wmemcpy(wchar_t* s1, const wchar_t* s2, size_t n); wchar_t* wmemmove(wchar_t* s1, const wchar_t* s2, size_t n); wchar_t* wcscat(wchar_t* s1, const wchar_t* s2); wchar_t* wcsncat(wchar_t* s1, const wchar_t* s2, size_t n); int wcscmp(const wchar_t* s1, const wchar_t* s2); int wcscoll(const wchar_t* s1, const wchar_t* s2); int wcsncmp(const wchar_t* s1, const wchar_t* s2, size_t n); size_t wcsxfrm(wchar_t* s1, const wchar_t* s2, size_t n); int wmemcmp(const wchar_t* s1, const wchar_t* s2, size_t n); const wchar_t* wcschr(const wchar_t* s, wchar_t c); // see [library.c] wchar_t* wcschr(wchar_t* s, wchar_t c); // see [library.c] size_t wcscspn(const wchar_t* s1, const wchar_t* s2); const wchar_t* wcspbrk(const wchar_t* s1, const wchar_t* s2); // see [library.c] wchar_t* wcspbrk(wchar_t* s1, const wchar_t* s2); // see [library.c] const wchar_t* wcsrchr(const wchar_t* s, wchar_t c); // see [library.c] wchar_t* wcsrchr(wchar_t* s, wchar_t c); // see [library.c] size_t wcsspn(const wchar_t* s1, const wchar_t* s2); const wchar_t* wcsstr(const wchar_t* s1, const wchar_t* s2); // see [library.c] wchar_t* wcsstr(wchar_t* s1, const wchar_t* s2); // see [library.c] wchar_t* wcstok(wchar_t* s1, const wchar_t* s2, wchar_t** ptr); const wchar_t* wmemchr(const wchar_t* s, wchar_t c, size_t n); // see [library.c] wchar_t* wmemchr(wchar_t* s, wchar_t c, size_t n); // see [library.c] size_t wcslen(const wchar_t* s); wchar_t* wmemset(wchar_t* s, wchar_t c, size_t n); size_t wcsftime(wchar_t* s, size_t maxsize, const wchar_t* format, const tm* timeptr); wint_t btowc(int c); int wctob(wint_t c); // [c.mb.wcs], multibyte / wide string and character conversion functions int mbsinit(const mbstate_t* ps); 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); } #define NULL see [support.types.nullptr] #define WCHAR_MAX see below #define WCHAR_MIN see below #define WEOF see below

23 Strings library [strings]

23.5 Null-terminated sequence utilities [c.strings]

23.5.4 Header <cwchar> synopsis [cwchar.syn]