xref: /netbsd-src/tests/usr.bin/xlint/lint1/msg_372.c (revision 465ab238788e2dd3555edb0497148fa4c5f47dc7)
1 /*	$NetBSD: msg_372.c,v 1.4 2024/08/31 06:57:31 rillig Exp $	*/
2 # 3 "msg_372.c"
3 
4 // Test for message: field width '%.*s' (%ju) in '%.*s' out of range 0..64 [372]
5 
6 /*
7  * In new-style formats, the width of a bit-field must be between 0 (an empty
8  * bit-field) and 64 (a bit-field spanning the whole value).
9  */
10 
11 /* lint1-extra-flags: -X 351 */
12 
13 typedef typeof(sizeof(0)) size_t;
14 typedef unsigned long long uint64_t;
15 
16 int snprintb(char *, size_t, const char *, uint64_t);
17 
18 void
19 example(uint64_t u64)
20 {
21 	char buf[64];
22 
23 	/* expect+12: warning: field width '\101' (65) in 'f\000\101all+1\0' out of range 0..64 [372] */
24 	/* expect+11: warning: bit field end 65 in 'f\000\101all+1\0' out of range 0..64 [373] */
25 	/* expect+10: warning: bit field end 65 in 'f\001\100oob64\0' out of range 0..64 [373] */
26 	/* expect+9: warning: 'f\001\100oob64\0' overlaps earlier 'f\000\100all\0' on bit 1 [376] */
27 	/* expect+8: warning: field width '\377' (255) in 'f\010\377oob64\0' out of range 0..64 [372] */
28 	/* expect+7: warning: bit field end 263 in 'f\010\377oob64\0' out of range 0..64 [373] */
29 	snprintb(buf, sizeof(buf),
30 	    "\177\020"
31 	    "f\000\100all\0"
32 	    "f\000\101all+1\0"
33 	    "f\001\100oob64\0"
34 	    "f\010\377oob64\0",
35 	    u64);
36 }
37