1 /* $NetBSD: msg_141.c,v 1.5 2021/08/23 06:50:01 rillig Exp $ */ 2 # 3 "msg_141.c" 3 4 // Test for message: integer overflow detected, op '%s' [141] 5 6 /* lint1-extra-flags: -h */ 7 8 /* 9 * Before tree.c 1.347 from 2021-08-23, lint wrongly warned about integer 10 * overflow in '-'. 11 */ 12 int signed_int_max = (1u << 31) - 1; 13 14 /* 15 * Before tree.c 1.347 from 2021-08-23, lint wrongly warned about integer 16 * overflow in '-'. 17 */ 18 unsigned int unsigned_int_max = (1u << 31) - 1; 19 20 /* expect+1: warning: integer overflow detected, op '+' [141] */ 21 int int_overflow = (1 << 30) + (1 << 30); 22 23 /* expect+2: warning: integer overflow detected, op '+' [141] */ 24 /* expect+1: warning: initialization of unsigned with negative constant [221] */ 25 unsigned int intermediate_overflow = (1 << 30) + (1 << 30); 26 27 unsigned int no_overflow = (1U << 30) + (1 << 30); 28 29 /* expect+1: warning: integer overflow detected, op '-' [141] */ 30 unsigned int unsigned_int_min = 0u - (1u << 31); 31 32 /* expect+1: warning: integer overflow detected, op '-' [141] */ 33 unsigned int unsigned_int_min_unary = -(1u << 31); 34