48 lines
1.1 KiB
C++
48 lines
1.1 KiB
C++
// RUN: %clang_cc1 -fsyntax-only -verify %s
|
|
|
|
template <int A, int B> void foo() {
|
|
(void)(A == A); // expected-warning {{self-comparison always evaluates to true}}
|
|
(void)(A == B);
|
|
}
|
|
template <int A, int B> struct S1 {
|
|
void foo() {
|
|
(void)(A == A); // expected-warning {{self-comparison always evaluates to true}}
|
|
(void)(A == B);
|
|
}
|
|
};
|
|
|
|
template <int A, int B> struct S2 {
|
|
template <typename T> T foo() {
|
|
(void)(A == A); // expected-warning {{self-comparison always evaluates to true}}
|
|
(void)(A == B);
|
|
}
|
|
};
|
|
|
|
struct S3 {
|
|
template <int A, int B> void foo() {
|
|
(void)(A == A); // expected-warning {{self-comparison always evaluates to true}}
|
|
(void)(A == B);
|
|
}
|
|
};
|
|
|
|
template <int A> struct S4 {
|
|
template <int B> void foo() {
|
|
(void)(A == A); // expected-warning {{self-comparison always evaluates to true}}
|
|
(void)(A == B);
|
|
}
|
|
};
|
|
|
|
const int N = 42;
|
|
template <int X> void foo2() {
|
|
(void)(X == N);
|
|
(void)(N == X);
|
|
}
|
|
|
|
void test() {
|
|
foo<1, 1>();
|
|
S1<1, 1> s1; s1.foo();
|
|
S2<1, 1> s2; s2.foo<void>();
|
|
S3 s3; s3.foo<1, 1>();
|
|
S4<1> s4; s4.foo<1>();
|
|
foo2<N>();
|
|
}
|