xref: /netbsd-src/tests/usr.bin/xlint/lint1/msg_373.c (revision 465ab238788e2dd3555edb0497148fa4c5f47dc7)
1*465ab238Srillig /*	$NetBSD: msg_373.c,v 1.4 2024/08/31 06:57:31 rillig Exp $	*/
238c0bdf2Srillig # 3 "msg_373.c"
338c0bdf2Srillig 
438c0bdf2Srillig // Test for message: bit field end %ju in '%.*s' out of range 0..64 [373]
538c0bdf2Srillig 
638c0bdf2Srillig /*
738c0bdf2Srillig  * A bit-field may start in the middle of the value.  When its end goes beyond
838c0bdf2Srillig  * 64, this means the uppermost bits will always be 0, and a narrower
938c0bdf2Srillig  * bit-field would have the same effect.
1038c0bdf2Srillig  */
1138c0bdf2Srillig 
1238c0bdf2Srillig /* lint1-extra-flags: -X 351 */
1338c0bdf2Srillig 
1438c0bdf2Srillig typedef typeof(sizeof(0)) size_t;
1538c0bdf2Srillig typedef unsigned long long uint64_t;
1638c0bdf2Srillig 
1738c0bdf2Srillig int snprintb(char *, size_t, const char *, uint64_t);
1838c0bdf2Srillig 
1938c0bdf2Srillig void
2038c0bdf2Srillig example(uint64_t u64)
2138c0bdf2Srillig {
2238c0bdf2Srillig 	char buf[64];
2338c0bdf2Srillig 
241ec17c71Srillig 	/* expect+12: warning: field width '\101' (65) in 'f\000\101all+1\0' out of range 0..64 [372] */
251ec17c71Srillig 	/* expect+11: warning: bit field end 65 in 'f\000\101all+1\0' out of range 0..64 [373] */
261ec17c71Srillig 	/* expect+10: warning: bit field end 65 in 'f\001\100oob64\0' out of range 0..64 [373] */
271ec17c71Srillig 	/* expect+9: warning: 'f\001\100oob64\0' overlaps earlier 'f\000\100all\0' on bit 1 [376] */
2838c0bdf2Srillig 	/* expect+8: warning: field width '\377' (255) in 'f\010\377oob64\0' out of range 0..64 [372] */
2938c0bdf2Srillig 	/* expect+7: warning: bit field end 263 in 'f\010\377oob64\0' out of range 0..64 [373] */
3038c0bdf2Srillig 	snprintb(buf, sizeof(buf),
3138c0bdf2Srillig 	    "\177\020"
3238c0bdf2Srillig 	    "f\000\100all\0"
3338c0bdf2Srillig 	    "f\000\101all+1\0"
3438c0bdf2Srillig 	    "f\001\100oob64\0"
3538c0bdf2Srillig 	    "f\010\377oob64\0",
3638c0bdf2Srillig 	    u64);
373d5fc263Srillig 
383d5fc263Srillig 	/* expect+5: warning: bit position '\377' (255) in 'f\377\002wrap-around\0' out of range 0..63 [371] */
393d5fc263Srillig 	/* expect+4: warning: bit field end 257 in 'f\377\002wrap-around\0' out of range 0..64 [373] */
403d5fc263Srillig 	snprintb(buf, sizeof(buf),
413d5fc263Srillig 	    "\177\020"
423d5fc263Srillig 	    "f\377\002wrap-around\0",
433d5fc263Srillig 	    u64);
4438c0bdf2Srillig }
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