The Linux Manuals (man pages) document is an important part of Linux documents. Linux Manuals are organized as several sections. Each section has a group of commands for a specific area in Linux usage, administration or development.
std::wctob – std::wctob Synopsis Defined in header<cwchar> int wctob(std::wint_t c); Narrows a wide character c if its multibyte character equivalent in the initial shift state is a single byte. This is typically possible for the characters from the ASCII character set, since most multibyte encodings (such as UTF-8) use single bytes to encode those characters….
std::wcsxfrm – std::wcsxfrm Synopsis Defined in header<cwchar> std::size_t strxfrm(wchar_t *dest, const wchar_t *src, std::size_t count); Transforms the null-terminated wide string pointed to by src into the implementation-defined form such that comparing two transformed strings with std::wcscmp gives the same result as comparing the original strings with std::wcscoll, in the current C locale. The first count…
std::wcstoul,std::wcstoull – std::wcstoul,std::wcstoull Synopsis Defined in header <cwchar> unsigned long wcstoul( const wchar_t* str, wchar_t** str_end, int base ); unsigned long long wcstoull( const wchar_t* str, wchar_t** str_end, int base ); (since C++11) Interprets an unsigned integer value in a wide string pointed to by str. Discards any whitespace characters (as identified by calling isspace())…
std::wcstol,std::wcstoll – std::wcstol,std::wcstoll Synopsis Defined in header <cwchar> long wcstol( const wchar_t* str, wchar_t** str_end, int base ); long long wcstoll( const wchar_t* str, wchar_t** str_end, int base ); (since C++11) Interprets an integer value in a wide string pointed to by str. Discards any whitespace characters (as identified by calling isspace()) until the first…
std::wcstok – std::wcstok Synopsis Defined in header<cwchar> wchar_t *wcstok(wchar_t *str, const wchar_t *delim, wchar_t **ptr); Finds the next token in a null-terminated wide string pointed to by str. The separator characters are identified by null-terminated wide string pointed to by delim. This function is designed to be called multiples times to obtain successive tokens from…
std::wcstoimax,std::wcstoumax – std::wcstoimax,std::wcstoumax Synopsis Defined in header <cinttypes> std::intmax_t wcstoimax( const wchar_t* nptr, wchar_t** endptr, int base ); (since C++11) std::uintmax_t wcstoumax( const wchar_t* nptr, wchar_t** endptr, int base ); (since C++11) Interprets an unsigned integer value in a wide string pointed to by nptr. Discards any whitespace characters (as identified by calling isspace()) until…
std::wcstof,std::wcstod,std::wcstold – std::wcstof,std::wcstod,std::wcstold Synopsis Defined in header <cwchar> float wcstof( const wchar_t* str, wchar_t** str_end ); (since C++11) double wcstod( const wchar_t* str, wchar_t** str_end ); long double wcstold( const wchar_t* str, wchar_t** str_end ); (since C++11) Interprets a floating point value in a wide string pointed to by str. Function discards any whitespace characters…
std::wcsstr – std::wcsstr Synopsis Defined in header<cwchar> const wchar_t *wcsstr(const wchar_t *dest, const wchar_t *src); wchar_t *wcsstr(wchar_t *dest, const wchar_t *src); Finds the first occurrence of the wide string src in the wide string pointed to by dest. The terminating null characters are not compared. Parameters dest – pointer to the null-terminated wide string to…
std::wcsspn – std::wcsspn Synopsis Defined in header<cwchar> size_t wcsspn(const wchar_t *dest, const wchar_t *src); Returns the length of the maximum initial segment of the wide string pointed to by dest, that consists of only the characters found in wide string pointed to by src. Parameters dest – pointer to the null-terminated wide string to be…
std::wcsrchr – std::wcsrchr Synopsis Defined in header<cwchar> const wchar_t *wcsrchr(const wchar_t *str, wchar_t ch); wchar_t *wcsrchr(wchar_t *str, wchar_t ch); Finds the last occurrence of the wide character ch in the wide string pointed to by str. Parameters str – pointer to the null-terminated wide string to be analyzed ch – wide character to search for…
std::wcspbrk – std::wcspbrk Synopsis Defined in header<cwchar> const wchar_t *wcspbrk(const wchar_t *dest, const wchar_t *str); wchar_t *wcspbrk(wchar_t *dest, const wchar_t *str); Finds the first character in wide string pointed to by dest, that is also in wide string pointed to by str. Parameters dest – pointer to the null-terminated wide string to be analyzed src…
std::wcsncpy – std::wcsncpy Synopsis Defined in header<cwchar> wchar_t *wcsncpy(wchar_t *dest, const wchar_t *src, std::size_t count); Copies at most count characters of the wide string pointed to by src (including the terminating null wide character) to wide character array pointed to by dest. If count is reached before the entire string src was copied, the resulting…
std::wcsncmp – std::wcsncmp Synopsis Defined in header<cwchar> int wcsncmp(const wchar_t *lhs, const wchar_t *rhs, std::size_t count); Compares at most count wide characters of two null-terminated wide strings. The comparison is done lexicographically. The sign of the result is the sign of the difference between the values of the first pair of wide characters that differ…
std::wcsncat – std::wcsncat Synopsis Defined in header<cwchar> wchar_t *wcsncat(wchar_t *dest, const wchar_t *src, std::size_t count); Appends at most count wide characters from the wide string pointed to by src to the end of the character string pointed to by dest, stopping if the null terminator is copied. The wide character src[0] replaces the null terminator…
std::wcslen – std::wcslen Synopsis Defined in header<cwchar> std::size_t wcslen(const wchar_t *str); Returns the length of a wide string, that is the number of non-null wide characters that precede the terminating null wide character. The behavior is undefined if there is no null character in the wide character array pointed to by str. Parameters str –…
std::wcsftime – std::wcsftime Synopsis Defined in header<cwchar> std::size_t wcsftime(wchar_t *str, std::size_t count, const wchar_t *format, const std::tm *time); Converts the date and time information from a given calendar time time to a null-terminated wide character string str according to format string format. Up to count wide characters are written. Parameters str – pointer to the…
std::wcscspn – std::wcscspn Synopsis Defined in header<cwchar> std::size_t wcscspn(const wchar_t *dest, const wchar_t *src); Returns the length of the maximum initial segment of the wide string pointed to by dest, that consists of only the characters not found in wide string pointed to by src. Parameters dest – pointer to the null-terminated wide string to…
std::wcscpy – std::wcscpy Synopsis Defined in header<cwchar> wchar_t *wcscpy(wchar_t *dest, const wchar_t *src); Copies the wide string pointed to by src (including the terminating null wide character) to wide character array pointed to by dest. If the strings overlap, the behavior is undefined. Parameters dest – pointer to the wide character array to copy to…
std::wcscoll – std::wcscoll Synopsis Defined in header<cwchar> int wcscoll(const wchar_t *lhs, const wchar_t *rhs); Compares two null-terminated wide strings according to the locale most recently installed by std::setlocale, as defined by the LC_COLLATE category. Parameters lhs, rhs – pointers to the null-terminated wide strings to compare Return value Negative value if lhs is less than…
std::wcscmp – std::wcscmp Synopsis Defined in header<cwchar> int wcscmp(const wchar_t *lhs, const wchar_t *rhs); Compares two null-terminated wide strings lexicographically. The sign of the result is the sign of the difference between the values of the first pair of wide characters that differ in the strings being compared. The behavior is undefined if lhs or…