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 hexa- decimal 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 character, zero otherwise. Notes std::iswdigit and std::iswxdigit are the only standard wide character 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'Ax') != 0) << '\n'; } Output: true false See also checks if a character is classified as a hexadeci- mal digit by isxdigit(std::locale) a locale (function template) isxdigit checks if a character is a hexadecimal character (function) C documentation for iswxdigit ASCII values characters iscntrl isprint isspace isblank isgraph ispunct isalnum isalpha isupper islower isdigit isxdigit decimal hexadecimal octal iswcntrl iswprint iswspace iswblank iswgraph iswpunct iswalnum iswalpha iswupper iswlower iswdigit iswxdigit 0a8 \x0a\x8 \0a\10 control codes a 0 0 0 0 0 0 0 0 0 0 0 0 (NUL, etc.) 9 \x9 \11 tab (\t) a 0 0 a 0 a 0 0 0 0 0 0 0 0 0 whitespaces 10a13 \xAa\xD \12a\15 (\n, \v, \f, a 0 0 a 0 0 0 0 0 0 0 0 0 0 \r) 14a31 \xEa\x1F \16a\37 control codes a 0 0 0 0 0 0 0 0 0 0 0 0 32 \x20 \40 space 0 a 0 a 0 a 0 0 0 0 0 0 0 0 0 33a47 \x21a\x2F \41a\57 !"#$%&'()*+,-./ 0 a 0 0 0 a 0 a 0 0 0 0 0 0 0 48a57 \x30a\x39 \60a\71 0123456789 0 a 0 0 0 a 0 0 a 0 0 0 0 a 0 a 0 58a64 \x3Aa\x40 \72a\100 :;<=>?@ 0 a 0 0 0 a 0 a 0 0 0 0 0 0 0 65a70 \x41a\x46 \101a\106 ABCDEF 0 a 0 0 0 a 0 0 a 0 a 0 a 0 0 0 a 0 71a90 \x47a\x5A \107a\132 GHIJKLMNOP 0 a 0 0 0 a 0 0 a 0 a 0 a 0 0 0 0 QRSTUVWXYZ 91a96 \x5Ba\x60 \133a\140 [\]^_` 0 a 0 0 0 a 0 a 0 0 0 0 0 0 0 97a102 \x61a\x66 \141a\146 abcdef 0 a 0 0 0 a 0 0 a 0 a 0 0 a 0 0 a 0 103a122 \x67a\x7A \147a\172 ghijklmnop 0 a 0 0 0 a 0 0 a 0 a 0 0 a 0 0 0 qrstuvwxyz 123a126 \x7Ba\x7E \172a\176 {|}~ 0 a 0 0 0 a 0 a 0 0 0 0 0 0 0 127 \x7F \177 backspace a 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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