msg_215.c revision 1.12 
1/*	$NetBSD: msg_215.c,v 1.12 2022/06/22 19:23:18 rillig Exp $	*/
2# 3 "msg_215.c"
3
4// Test for message: function '%s' implicitly declared to return int [215]
5
6/*
7 * In traditional C and C90, it was possible to implicitly declare a function
8 * by just calling it, without defining a prototype first.  Such a function
9 * would then be defined as taking unspecified parameters and returning int.
10 */
11
12struct str {
13	int dummy;
14};
15
16/* ARGSUSED */
17void
18test(struct str str, const double *p_double)
19{
20	/* expect+1: error: function 'name' implicitly declared to return int [215] */
21	name();
22
23	/* expect+2: error: 'parenthesized' undefined [99] */
24	/* expect+1: error: cannot call 'int', must be a function [149] */
25	(parenthesized)();
26
27	/* expect+2: error: type 'struct str' does not have member 'member' [101] */
28	/* expect+1: error: cannot call 'int', must be a function [149] */
29	str.member();
30
31	/* https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html */
32	__builtin_whatever(123, "string");
33	__atomic_whatever(123, "string");
34	/* obsolete but still in use, as of 2021 */
35	__sync_whatever(123, "string");
36
37	/* https://software.intel.com/sites/landingpage/IntrinsicsGuide/ */
38	_mm_load_sd(p_double);
39}
40