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std::iswxdigit(3) C++ Standard Libary std::iswxdigit(3) NAME std::iswxdigit - std::iswxdigit Synopsis Defined in header <cwctype> int iswxdigit( wint_t ch ); Checks if the given wide character corresponds (if narrowed) to a hexadecimal numeric character, i.e. one of 0123456789abcdefABCDEF. If the value of ch is neither representable as a wchar_t nor equal to the value of the macro WEOF, the behavior is undefined. Parameters ch - wide character Return value Non-zero value if the wide character is a hexadecimal numeric char- acter, zero otherwise. Notes std::iswdigit and std::iswxdigit are the only standard wide charac- ter classification functions that are not affected by the currently installed C locale. Example // Run this code #include <cwctype> #include <iostream> int main() { std::cout << std::boolalpha << (std::iswxdigit(L'a') != 0) << ' ' << (std::iswxdigit(L'') != 0) << '\n'; } Output: true false See also checks if a character is classified as a hexa- decimal digit by isxdigit(std::locale) a locale (function template) isxdigit checks if a character is a hexadecimal charac- ter (function) C documentation for iswxdigit ASCII values characters iscntrl isprint isspace isblank isgraph ispunct isalnum isalpha isupper islower isdigit isxdigit decimal hexadecimal octal iswcntrl isw- print iswspace iswblank iswgraph iswpunct iswalnum iswalpha iswupper iswlower iswdigit iswxdigit 08 \x0\x8 \0\10 control codes 0 0 0 0 0 0 0 0 0 0 0 0 (NUL, etc.) 9 \x9 \11 tab (\t) 0 0 0 0 0 0 0 0 0 0 0 0 whitespaces 1013 \xA\xD \12\15 (\n, \v, \f, 0 0 0 0 0 0 0 0 0 0 0 0 \r) 1431 \xE\x1F \16\37 control codes 0 0 0 0 0 0 0 0 0 0 0 0 32 \x20 \40 space 0 0 0 0 0 0 0 0 0 0 0 0 3347 \x21\x2F \41\57 !"#$%&'()*+,-./ 0 0 0 0 0 0 0 0 0 0 0 0 4857 \x30\x39 \60\71 0123456789 0 0 0 0 0 0 0 0 0 0 0 0 5864 \x3A\x40 \72\100 :;<=>?@ 0 0 0 0 0 0 0 0 0 0 0 0 6570 \x41\x46 \101\106 ABCDEF 0 0 0 0 0 0 0 0 0 0 0 0 7190 \x47\x5A \107\132 GHIJKLMNOP 0 0 0 0 0 0 0 0 0 0 0 0 QRSTUVWXYZ 9196 \x5B\x60 \133\140 [\]^_` 0 0 0 0 0 0 0 0 0 0 0 0 97102 \x61\x66 \141\146 abcdef 0 0 0 0 0 0 0 0 0 0 0 0 103122 \x67\x7A \147\172 ghijklmnop 0 0 0 0 0 0 0 0 0 0 0 0 qrstuvwxyz 123126 \x7B\x7E \172\176 {|}~ 0 0 0 0 0 0 0 0 0 0 0 0 127 \x7F \177 backspace 0 0 0 0 0 0 0 0 0 0 0 0 character (DEL) http://cppreference.com 2024.06.10 std::iswxdigit(3)
NAME | Synopsis | Parameters | Return value | Notes | Example | Output: | See also
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