Query: isalpha
OS: mojave
Section: 3
Format: Original Unix Latex Style Formatted with HTML and a Horizontal Scroll Bar
ISALPHA(3) BSD Library Functions Manual ISALPHA(3)NAMEisalpha -- alphabetic character testLIBRARYStandard C Library (libc, -lc)SYNOPSIS#include <ctype.h> int isalpha(int c);DESCRIPTIONThe isalpha() function tests for any character for which isupper(3) or islower(3) is true. The value of the argument must be representable as an unsigned char or the value of EOF. In the ASCII character set, this includes the following characters (preceded by their numeric values, in octal): 101 ``A'' 102 ``B'' 103 ``C'' 104 ``D'' 105 ``E'' 106 ``F'' 107 ``G'' 110 ``H'' 111 ``I'' 112 ``J'' 113 ``K'' 114 ``L'' 115 ``M'' 116 ``N'' 117 ``O'' 120 ``P'' 121 ``Q'' 122 ``R'' 123 ``S'' 124 ``T'' 125 ``U'' 126 ``V'' 127 ``W'' 130 ``X'' 131 ``Y'' 132 ``Z'' 141 ``a'' 142 ``b'' 143 ``c'' 144 ``d'' 145 ``e'' 146 ``f'' 147 ``g'' 150 ``h'' 151 ``i'' 152 ``j'' 153 ``k'' 154 ``l'' 155 ``m'' 156 ``n'' 157 ``o'' 160 ``p'' 161 ``q'' 162 ``r'' 163 ``s'' 164 ``t'' 165 ``u'' 166 ``v'' 167 ``w'' 170 ``x'' 171 ``y'' 172 ``z''RETURN VALUESThe isalpha() function returns zero if the character tests false and returns non-zero if the character tests true.COMPATIBILITYThe 4.4BSD extension of accepting arguments outside of the range of the unsigned char type in locales with large character sets is considered obsolete and may not be supported in future releases. The iswalpha() function should be used instead.SEE ALSOctype(3), isalnum_l(3), islower(3), isupper(3), iswalpha(3), ascii(7)STANDARDSThe isalpha() function conforms to ISO/IEC 9899:1990 (``ISO C90'').BSDJuly 17, 2005 BSD
Related Man Pages |
---|
isalpha(3) - mojave |
isalpha(3) - freebsd |
isprint(3) - osx |
islower_l(3) - freebsd |
isalnum(3) - freebsd |
Similar Topics in the Unix Linux Community |
---|
sed with tabulation |
Multiple file handling |
Array indexing in shell |
IP address to decimal format conversion |
Sort command in one column and not effect to another column |