llvm-project/clang/test/SemaCXX/warn-unused-variables.cpp
Douglas Gregor 50dc219e8b When we have a dependent direct initializer but not a dependent
variable type, we can (and should) still check for completeness of the
variable's type. Do so, to work around an assertion that shows up in
Boost's shared_ptr.

llvm-svn: 95934
2010-02-11 22:55:30 +00:00

54 lines
837 B
C++

// RUN: %clang_cc1 -fsyntax-only -Wunused-variable -verify %s
template<typename T> void f() {
T t;
t = 17;
}
// PR5407
struct A { A(); };
struct B { ~B(); };
void f() {
A a;
B b;
}
// PR5531
namespace PR5531 {
struct A {
};
struct B {
B(int);
};
struct C {
~C();
};
void test() {
A(); // expected-warning{{expression result unused}}
B(17);
C();
}
}
struct X {
int foo() __attribute__((warn_unused_result));
};
void bah() {
X x, *x2;
x.foo(); // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}}
x2->foo(); // expected-warning {{ignoring return value of function declared with warn_unused_result attribute}}
}
template<typename T>
struct X0 { };
template<typename T>
void test_dependent_init(T *p) {
X0<int> i(p);
(void)i;
}