Exemplos de weak_func em C++ (Cpp)

Exemplo n.º 1

Arquivo: dlfcn_test.cpp Projeto: LjBLincoln/platform_bionic

TEST(dlfcn, dlopen_undefined_weak_func) {
  void* handle = dlopen("libtest_dlopen_weak_undefined_func.so", RTLD_NOW);
  ASSERT_TRUE(handle != nullptr) << dlerror();
  int (*weak_func)();
  weak_func = reinterpret_cast<int (*)()>(dlsym(handle, "use_weak_undefined_func"));
  ASSERT_TRUE(weak_func != nullptr) << dlerror();
  EXPECT_EQ(6551, weak_func());
  dlclose(handle);
}

Exemplo n.º 2

Arquivo: dlfcn_test.cpp Projeto: LjBLincoln/platform_bionic

TEST(dlfcn, dlsym_weak_func) {
  dlerror();
  void* handle = dlopen("libtest_dlsym_weak_func.so", RTLD_NOW);
  ASSERT_TRUE(handle != nullptr);

  int (*weak_func)();
  weak_func = reinterpret_cast<int (*)()>(dlsym(handle, "weak_func"));
  ASSERT_TRUE(weak_func != nullptr) << "dlerror: " << dlerror();
  EXPECT_EQ(42, weak_func());
  dlclose(handle);
}

Exemplo n.º 3

Arquivo: main.c Projeto: SylvestreG/bitrig

int
main(int argc, char **argv)
{
	if (weak_func() != WEAK_REF)
		errx(1, "error calling weak reference");

	if (func() != STRONG_REF)
		errx(1, "error calling strong reference");

	return (0);
}