diff options
| -rw-r--r-- | test/SemaCXX/warn-func-as-bool.cpp | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/test/SemaCXX/warn-func-as-bool.cpp b/test/SemaCXX/warn-func-as-bool.cpp new file mode 100644 index 0000000000..2606b4da95 --- /dev/null +++ b/test/SemaCXX/warn-func-as-bool.cpp @@ -0,0 +1,28 @@ +// RUN: %clang_cc1 -x c++ -verify -fsyntax-only %s + +void f1(); + +struct S { + static void f2(); +}; + +extern void f3() __attribute__((weak_import)); + +struct S2 { + static void f4() __attribute__((weak_import)); +}; + +void bar() { + bool b; + + b = f1; // expected-warning {{address of function 'f1' will always evaluate to 'true'}} + if (f1) {} // expected-warning {{address of function 'f1' will always evaluate to 'true'}} + b = S::f2; // expected-warning {{address of function 'S::f2' will always evaluate to 'true'}} + if (S::f2) {} // expected-warning {{address of function 'S::f2' will always evaluate to 'true'}} + + // implicit casts of weakly imported symbols are ok: + b = f3; + if (f3) {} + b = S2::f4; + if (S2::f4) {} +} |