1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
| // 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>();
}
|