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ISXDIGIT(3) BSD Library Functions Manual ISXDIGIT(3) NAME isxdigit -- hexadecimal-digit character test LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <ctype.h> int isxdigit(int c); DESCRIPTION The isxdigit() function tests for any hexadecimal-digit character. For single C chars locales (see multibyte(3)) the value of the argument is representable as an unsigned char or the value of EOF. In the ASCII character set, this includes the following characters (with their numeric values shown in octal): 060 ``0'' 061 ``1'' 062 ``2'' 063 ``3'' 064 ``4'' 065 ``5'' 066 ``6'' 067 ``7'' 070 ``8'' 071 ``9'' 101 ``A'' 102 ``B'' 103 ``C'' 104 ``D'' 105 ``E'' 106 ``F'' 141 ``a'' 142 ``b'' 143 ``c'' 144 ``d'' 145 ``e'' 146 ``f'' RETURN VALUES The isxdigit() function returns zero if the character tests false and re- turns non-zero if the character tests true. SEE ALSO ctype(3), multibyte(3), ascii(7) STANDARDS The isxdigit() function conforms to ISO/IEC 9899:1990 ("ISO C90"). BSD June 4, 1993 BSD
NAME | LIBRARY | SYNOPSIS | DESCRIPTION | RETURN VALUES | SEE ALSO | STANDARDS
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