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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/Sema/warn-unused-variables.c | |
parent | c4626a62754862d20b41e8a46a3574264ea80e6d (diff) | |
parent | f1bd2e48c5324d3f7cda4090c87f8a5b6f463ce2 (diff) |
Merge branch 'master' of ssh://bitbucket.org/czan/honours
Diffstat (limited to 'clang/test/Sema/warn-unused-variables.c')
-rw-r--r-- | clang/test/Sema/warn-unused-variables.c | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/clang/test/Sema/warn-unused-variables.c b/clang/test/Sema/warn-unused-variables.c new file mode 100644 index 0000000..58e52b1 --- /dev/null +++ b/clang/test/Sema/warn-unused-variables.c @@ -0,0 +1,32 @@ +// RUN: %clang_cc1 -fsyntax-only -Wunused-variable -fblocks -verify %s + +struct s0 { + unsigned int i; +}; + +int proto(int a, int b); + +void f0(void) { + int a __attribute__((unused)), + b; // expected-warning{{unused}} + return; +} + +void f1(void) { + int i; + (void)sizeof(i); + return; +} + +// PR5933 +int f2() { + int X = 4; // Shouldn't have a bogus 'unused variable X' warning. + return Y + X; // expected-error {{use of undeclared identifier 'Y'}} +} + +int f3() { + int X1 = 4; + (void)(Y1 + X1); // expected-error {{use of undeclared identifier 'Y1'}} + (void)(^() { int X = 4; }); // expected-warning{{unused}} + (void)(^() { int X = 4; return Y + X; }); // expected-error {{use of undeclared identifier 'Y'}} +} |