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comparison gcc/testsuite/gcc.dg/uninit-3-O0.c @ 111:04ced10e8804

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gcc 7
author kono
date Fri, 27 Oct 2017 22:46:09 +0900
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68:561a7518be6b 111:04ced10e8804
1 /* Spurious uninit variable warnings, case 3.
2 Inspired by cppexp.c (parse_charconst) */
3 /* { dg-do compile } */
4 /* { dg-options "-Wuninitialized" } */
5
6 extern void error (char *);
7
8 int
9 parse_charconst (const char *start, const char *end)
10 {
11 int c; /* { dg-bogus "c" "uninitialized variable warning" } */
12 int nchars, retval;
13
14 nchars = 0;
15 retval = 0;
16 while (start < end)
17 {
18 c = *start++;
19 if (c == '\'')
20 break;
21 nchars++;
22 retval += c;
23 retval <<= 8;
24 }
25
26 if (nchars == 0)
27 return 0;
28
29 if (c != '\'')
30 error ("malformed character constant");
31
32 return retval;
33 }