1 /* $NetBSD: msg_230.c,v 1.3 2021/01/31 11:12:07 rillig Exp $ */ 2 # 3 "msg_230.c" 3 4 // Test for message: nonportable character comparison, op %s [230] 5 6 /* lint1-flags: -S -g -p -w */ 7 8 void example(char c, unsigned char uc, signed char sc) 9 { 10 if (c < 0) 11 if (uc < 0) /* expect: 162 */ 12 if (sc < 0) 13 return; 14 15 /* 16 * XXX: The comparison "<= -1" looks very similar to "< 0", 17 * nevertheless "< 0" does not generate a warning. 18 * 19 * The comparisons may actually differ subtly because of the usual 20 * arithmetic promotions. 21 * */ 22 if (c <= -1) /* expect: 230 */ 23 if (uc <= -1) /* expect: 162 */ 24 if (sc <= -1) 25 return; 26 } 27