fxlibc/src/libc/ctype/ispunct.c

#include <ctype.h>
#undef ispunct

int ispunct(int c)
{
	return (c >= 33 && c <= 47) || (c >= 58 && c <= 64) ||
		(c >= 91 && c <= 96) || (c >= 123 && c <= 126);
}