NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO | STANDARDS
#include <ctype.h>int isascii(int c);
Theisascii function tests for an ASCII character, which is any character with a value less than or equal to 0177.
The isascii function returns 1 if number is ASCII, otherwise 0.
The validity of the test is limited to the defaut locale. If another locale is currently in effect, the semantical correctness of the result is unspecified.
See attributes(5) for descriptions of the following attributes:
ATTRIBUTE TYPE | ATTRIBUTE VALUE |
---|---|
Interface Stability | Evolving |
Due to its dubious validity when used in conjunction with setlocale, this function is no longer part of ANSI-C.
NAME | SYNOPSIS | DESCRIPTION | ATTRIBUTES | SEE ALSO | STANDARDS