diff options
Diffstat (limited to 'test/SemaCXX/warn-weak-vtables.cpp')
-rw-r--r-- | test/SemaCXX/warn-weak-vtables.cpp | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/test/SemaCXX/warn-weak-vtables.cpp b/test/SemaCXX/warn-weak-vtables.cpp index 912622f..135e034 100644 --- a/test/SemaCXX/warn-weak-vtables.cpp +++ b/test/SemaCXX/warn-weak-vtables.cpp @@ -1,4 +1,4 @@ -// RUN: %clang_cc1 %s -fsyntax-only -verify -Wweak-vtables +// RUN: %clang_cc1 %s -fsyntax-only -verify -Wweak-vtables -Wweak-template-vtables struct A { // expected-warning {{'A' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}} virtual void f() { } @@ -56,3 +56,23 @@ void uses(Parent &p, Derived &d, VeryDerived &vd) { d.getFoo(); vd.getFoo(); } + +template<typename T> struct TemplVirt { + virtual void f(); +}; + +template class TemplVirt<float>; // expected-warning{{explicit template instantiation 'TemplVirt<float>' will emit a vtable in every translation unit}} + +template<> struct TemplVirt<bool> { + virtual void f(); +}; + +template<> struct TemplVirt<long> { // expected-warning{{'TemplVirt<long>' has no out-of-line virtual method definitions; its vtable will be emitted in every translation unit}} + virtual void f() {} +}; + +void uses(TemplVirt<float>& f, TemplVirt<bool>& b, TemplVirt<long>& l) { + f.f(); + b.f(); + l.f(); +} |