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author | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
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committer | Zancanaro; Carlo <czan8762@plang3.cs.usyd.edu.au> | 2012-09-24 09:58:17 +1000 |
commit | 222e2a7620e6520ffaf4fc4e69d79c18da31542e (patch) | |
tree | 7bfbc05bfa3b41c8f9d2e56d53a0bc3e310df239 /clang/test/Sema/warn-unused-variables.c | |
parent | 3d206f03985b50beacae843d880bccdc91a9f424 (diff) |
Add the clang library to the repo (with some of my changes, too).
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'}} +} |