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#include <ctype.h>
/** test whether a character is in the ASCII range **/
int isascii(int c)
{
SIGNAL_SAFE(0);
if (0 <= c && c <= 0177) {
return 1;
}
return 0;
}
/***
tests whether ARGUMENT(c) is a 7-bit US-ASCII character.
***/
/*
RETURN(NONZERO, ARGUMENT(c) is between 0 and octal 0177 inclusive)
RETURN(ZERO, ARGUMENT(c) is outside of the ASCII range)
XOBSOLETE(700)
XOPEN(4)
*/
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