xref: /netbsd-src/tests/usr.bin/xlint/lint1/msg_142.c (revision db3c6112752d8c8c254951ed7b1eb44ec567275f)
1 /*	$NetBSD: msg_142.c,v 1.12 2024/06/08 06:42:59 rillig Exp $	*/
2 # 3 "msg_142.c"
3 
4 // Test for message: operator '%s' produces floating point overflow [142]
5 
6 /* lint1-extra-flags: -X 351 */
7 
8 /*
9  * For 96-bit and 128-bit floating point numbers, a different number of
10  * multipliers is needed to produce an overflow.
11  */
12 
13 /* expect+2: warning: operator '*' produces floating point overflow [142] */
14 /* expect+1: warning: operator '*' produces floating point overflow [142] */
15 double dbl = 1e100 * 1e100 * 1e100 * 1e100 * 1e100;
16 
17 /*
18  * Ensure that an addition in the complex number space doesn't generate
19  * wrong warnings. Lint doesn't model complex constants accurately.
20  */
21 double _Complex complex_sum = 1e308 + 1e308i;
22