isalnum('\xdf') in default C locale returned 0 isalnum('\xdf') in ISO-8859-1 locale returned 1 引用 C11 standard (ISO/IEC 9899:2011): 7.4.1.1 The isalnum function (p: 200) C99 standard (ISO/IEC 9899:1999): 7.4.1.1 The isalnum function (p: 181) C89/C90 standard (ISO/IEC...
7.4.1.1 The isalnum function (p: 181) C89/C90 standard (ISO/IEC 9899:1990): 4.3.1.1 The isalnum function See also iswalnum (C95) checks if a wide character is alphanumeric (function) ASCII values characters iscntrl iswcntrl isprint iswprint isspace iswspace isblank iswblank ...
isalnum('\xdf') in default C locale returned 0 isalnum('\xdf') in ISO-8859-1 locale returned 1ReferencesC23 standard (ISO/IEC 9899:2024): 7.4.1.1 The isalnum function (p: TBD) C17 standard (ISO/IEC 9899:2018): 7.4.1.1 The isalnum function (p: 145) C11...
4.3.1.1 The isalnum function 参阅 iswalnum (C95) 检查宽字符是否为字母或数字 (函数) ASCII值(十六进制) 字符 iscntrl iswcntrl isprint iswprint isspace iswspace isblank iswblank isgraph iswgraph ispunct iswpunct isalnum iswalnum isalpha iswalpha isupper iswupper islower iswlower isdig...
By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT. Requirements Stækka töflu RoutineRequired header isalnum <ctype.h> iswalnum <ctype.h> or <wchar.h> _isalnum_l <ctype.h> _iswalnum_l <ctype.h> ...
可能的输出: isalnum('\xdf') in default C locale returned 0 isalnum('\xdf') in ISO-8859-1 locale returned 1 引用 C11 standard (ISO/IEC 9899:2011): 7.4.1.1 The isalnum function (p: 200) C99 standard (ISO/IEC 9899:1999): 7.4.1.1 The isalnum function (p: 181) ...
By default, this function's global state is scoped to the application. To change this behavior, see Global state in the CRT.RequirementsProširi tablicu RoutineRequired header isalnum <ctype.h> iswalnum <ctype.h> or <wchar.h> _isalnum_l <ctype.h> _iswalnum_l <ctype.h> or ...
(function template) iswalnum checks if a wide character is alphanumeric (function) C documentation for isalnum ASCII values characters iscntrl iswcntrl isprint iswprint isspace iswspace isblank iswblank isgraph iswgraph ispunct iswpunct isalnum iswalnum isalpha iswalpha isupper isw...
isalnum(c));if(setlocale(LC_CTYPE,"en_US.UTF-8"))//isalnum('\xdf') in UTF-8 locale returned 0printf("isalnum('\\xdf') in UTF-8 locale returned %d\n", !!isalnum(c));///intvar1 ='d';intvar2 ='2';intvar3 ='\t';intvar4 =' ';if(isalnum(var1)) {printf("var1 = ...
isalnum('\xdf') in default C locale returned 0 isalnum('\xdf') in ISO-8859-1 locale returned 1 引用 C11 standard (ISO/IEC 9899:2011): 7.4.1.1 The isalnum function (p: 200) C99 standard (ISO/IEC 9899:1999): 7.4.1.1 The isalnum function (p: 181) C89/C90 standard (ISO/IEC...