diff options
author | zack <zack@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-11 16:00:04 +0000 |
---|---|---|
committer | zack <zack@138bc75d-0d04-0410-961f-82ee72b054a4> | 1999-03-11 16:00:04 +0000 |
commit | c010fb5b068a19bd1738f4ebb9665d4fb35d2762 (patch) | |
tree | 6dc897a58cfd0a75c3f1c7ed19c6746eccf11828 /gcc/testsuite/gcc.dg/uninit-3.c | |
parent | d087657d05d68f46ab4a281cfa4332e86bfdc603 (diff) | |
download | gcc-c010fb5b068a19bd1738f4ebb9665d4fb35d2762.tar.gz |
`
Tests for various kinds of spurious uninit variable warning.
All are derived from cpplib; see comments in the files.
git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@25711 138bc75d-0d04-0410-961f-82ee72b054a4
Diffstat (limited to 'gcc/testsuite/gcc.dg/uninit-3.c')
-rw-r--r-- | gcc/testsuite/gcc.dg/uninit-3.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/gcc/testsuite/gcc.dg/uninit-3.c b/gcc/testsuite/gcc.dg/uninit-3.c new file mode 100644 index 00000000000..78c4254dea5 --- /dev/null +++ b/gcc/testsuite/gcc.dg/uninit-3.c @@ -0,0 +1,33 @@ +/* Spurious uninit variable warnings, case 3. + Inspired by cppexp.c (parse_charconst) */ +/* { dg-do compile } */ +/* { dg-options "-O -Wuninitialized" } */ + +extern void error (char *); + +int +parse_charconst (const char *start, const char *end) +{ + int c; /* { dg-bogus "c" "uninitialized variable warning" { xfail *-*-* } } */ + int nchars, retval; + + nchars = 0; + retval = 0; + while (start < end) + { + c = *start++; + if (c == '\'') + break; + nchars++; + retval += c; + retval <<= 8; + } + + if (nchars == 0) + return 0; + + if (c != '\'') + error ("malformed character constant"); + + return retval; +} |