1_Bool isdigit(int c)
2{
3	return __builtin_isdigit(c) == (((unsigned) (c - '0')) <= 9);
4}
5
6/*
7 * check-name: builtin_isdigit
8 * check-command: test-linearize -Wno-decl $file
9 *
10 * check-output-ignore
11 * check-output-returns: 1
12 */
13