Проект OpenNet: MAN isalpha (3) Библиотечные вызовы (FreeBSD и Linux)

Интерактивная система просмотра системных руководств (man-ов)

isalpha (3)

>> isalpha (3) ( FreeBSD man: Библиотечные вызовы )

isalpha (3) ( Русские man: Библиотечные вызовы )

isalpha (3) ( Linux man: Библиотечные вызовы )

isalpha (3) ( POSIX man: Библиотечные вызовы )

BSD mandoc

NAME



isalpha

 - alphabetic character test

LIBRARY

Lb libc

SYNOPSIS

#include <ctype.h>
int isalpha (int c);

DESCRIPTION

The 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 Vt unsigned char or the value of EOF

In the ASCII character set, this includes the following characters (with their numeric values shown 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 VALUES

The isalpha ();
function returns zero if the character tests false and returns non-zero if the character tests true.

COMPATIBILITY

The BSD 4.4 extension of accepting arguments outside of the range of the Vt 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.