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author | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
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committer | Carlo Zancanaro <carlo@pc-4w14-0.cs.usyd.edu.au> | 2012-10-15 17:10:06 +1100 |
commit | be1de4be954c80875ad4108e0a33e8e131b2f2c0 (patch) | |
tree | 1fbbecf276bf7c7bdcbb4dd446099d6d90eaa516 /clang/test/Preprocessor/overflow.c | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/Preprocessor/overflow.c')
-rw-r--r-- | clang/test/Preprocessor/overflow.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/clang/test/Preprocessor/overflow.c b/clang/test/Preprocessor/overflow.c new file mode 100644 index 0000000..a921441 --- /dev/null +++ b/clang/test/Preprocessor/overflow.c @@ -0,0 +1,25 @@ +// RUN: %clang_cc1 -Eonly %s -verify -triple i686-pc-linux-gnu + +// Multiply signed overflow +#if 0x7FFFFFFFFFFFFFFF*2 // expected-warning {{overflow}} +#endif + +// Multiply unsigned overflow +#if 0xFFFFFFFFFFFFFFFF*2 +#endif + +// Add signed overflow +#if 0x7FFFFFFFFFFFFFFF+1 // expected-warning {{overflow}} +#endif + +// Add unsigned overflow +#if 0xFFFFFFFFFFFFFFFF+1 +#endif + +// Subtract signed overflow +#if 0x7FFFFFFFFFFFFFFF- -1 // expected-warning {{overflow}} +#endif + +// Subtract unsigned overflow +#if 0xFFFFFFFFFFFFFFFF- -1 // expected-warning {{converted from negative value}} +#endif |