xref: /netbsd-src/tests/usr.bin/xlint/lint1/lex_string.c (revision b2baa50111d645353fa30b4deab0f79d93650c8c) 
1*b2baa501Srillig /*	$NetBSD: lex_string.c,v 1.6 2023/03/28 14:44:34 rillig Exp $	*/
23ce615ebSrillig # 3 "lex_string.c"
33ce615ebSrillig 
43ce615ebSrillig /*
53ce615ebSrillig  * Test lexical analysis of string constants.
63ce615ebSrillig  *
73ce615ebSrillig  * C99 6.4.5 "String literals"
83ce615ebSrillig  */
93ce615ebSrillig 
10*b2baa501Srillig /* lint1-extra-flags: -X 351 */
11*b2baa501Srillig 
123ce615ebSrillig void sink(const char *);
133ce615ebSrillig 
143ce615ebSrillig void
test(void)153ce615ebSrillig test(void)
163ce615ebSrillig {
173ce615ebSrillig 	sink("");
183ce615ebSrillig 
193ce615ebSrillig 	sink("hello, world\n");
203ce615ebSrillig 
213ce615ebSrillig 	sink("\0");
223ce615ebSrillig 
233ce615ebSrillig 	sink("\0\0\0\0");
243ce615ebSrillig 
25c83f7defSrillig 	/* expect+1: error: no hex digits follow \x [74] */
263ce615ebSrillig 	sink("\x");		/* unfinished */
273ce615ebSrillig 
28c83f7defSrillig 	/* expect+1: warning: dubious escape \y [79] */
293ce615ebSrillig 	sink("\y");		/* unknown escape sequence */
300b138779Srillig 
310b138779Srillig 	sink("first" "second");
320b138779Srillig 
330b138779Srillig 	/* expect+1: error: cannot concatenate wide and regular string literals [292] */
340b138779Srillig 	sink("plain" L"wide");
353ce615ebSrillig }
36f1e67469Srillig 
37f1e67469Srillig /* TODO: test digraphs inside string literals */
38f1e67469Srillig /* TODO: test trigraphs inside string literals */
39