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| author | Matt Beaumont-Gay <matthewbg@google.com> | 2013-02-26 19:34:08 +0000 |
|---|---|---|
| committer | Matt Beaumont-Gay <matthewbg@google.com> | 2013-02-26 19:34:08 +0000 |
| commit | 1c417da558e97f9b77706ed45f90f9c04e6cc085 (patch) | |
| tree | 4183c4f051cba05c590276b2b8be5047aaf867c2 /clang/test/Sema/unused-expr.c | |
| parent | c0550990c50625c9b084c4aa3c2ba8c0960e61eb (diff) | |
| download | bcm5719-llvm-1c417da558e97f9b77706ed45f90f9c04e6cc085.tar.gz bcm5719-llvm-1c417da558e97f9b77706ed45f90f9c04e6cc085.zip | |
Warn on dropping the return value from a warn_unused_result function, even in
macros.
llvm-svn: 176114
Diffstat (limited to 'clang/test/Sema/unused-expr.c')
| -rw-r--r-- | clang/test/Sema/unused-expr.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/clang/test/Sema/unused-expr.c b/clang/test/Sema/unused-expr.c index 0786ede6763..ea08631ebae 100644 --- a/clang/test/Sema/unused-expr.c +++ b/clang/test/Sema/unused-expr.c @@ -132,6 +132,8 @@ int fn5() __attribute__ ((__const)); #define M3(a) (t3(a), fn2()) #define M4(a, b) (foo((a), (b)) ? 0 : t3(a), 1) #define M5(a, b) (foo((a), (b)), 1) +#define M6() fn1() +#define M7() fn2() void t11(int i, int j) { M1(i, j); // no warning NOP((long)foo(i, j)); // expected-warning {{expression result unused}} @@ -143,6 +145,8 @@ void t11(int i, int j) { NOP((foo(i, j) ? 0 : t3(i), 1)); // expected-warning {{expression result unused}} M5(i, j); // no warning NOP((foo(i, j), 1)); // expected-warning {{expression result unused}} + M6(); // expected-warning {{ignoring return value}} + M7(); // no warning } #undef NOP #undef M1 @@ -150,3 +154,5 @@ void t11(int i, int j) { #undef M3 #undef M4 #undef M5 +#undef M6 +#undef M7 |
