msg_215.c revision 1.13 
1/*	$NetBSD: msg_215.c,v 1.13 2023/07/07 19:45:22 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
12/* lint1-extra-flags: -X 351 */
13
14struct str {
15	int dummy;
16};
17
18/* ARGSUSED */
19void
20test(struct str str, const double *p_double)
21{
22	/* expect+1: error: function 'name' implicitly declared to return int [215] */
23	name();
24
25	/* expect+2: error: 'parenthesized' undefined [99] */
26	/* expect+1: error: cannot call 'int', must be a function [149] */
27	(parenthesized)();
28
29	/* expect+2: error: type 'struct str' does not have member 'member' [101] */
30	/* expect+1: error: cannot call 'int', must be a function [149] */
31	str.member();
32
33	/* https://gcc.gnu.org/onlinedocs/gcc/C-Extensions.html */
34	__builtin_whatever(123, "string");
35	__atomic_whatever(123, "string");
36	/* obsolete but still in use, as of 2021 */
37	__sync_whatever(123, "string");
38
39	/* https://software.intel.com/sites/landingpage/IntrinsicsGuide/ */
40	_mm_load_sd(p_double);
41}
42