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
|
// RUN: %clang_cc1 -fsyntax-only -Wunused -std=c2x -verify %s
struct [[maybe_unused]] S1 { // ok
int a [[maybe_unused]];
};
enum [[maybe_unused]] E1 {
EnumVal [[maybe_unused]]
};
[[maybe_unused]] void unused_func([[maybe_unused]] int parm) {
typedef int maybe_unused_int [[maybe_unused]];
[[maybe_unused]] int I;
}
void f1(void) {
int x; // expected-warning {{unused variable}}
typedef int I; // expected-warning {{unused typedef 'I'}}
// Should not warn about these due to not being used.
[[maybe_unused]] int y;
typedef int maybe_unused_int [[maybe_unused]];
// Should not warn about these uses.
struct S1 s;
maybe_unused_int test;
y = 12;
}
void f2(void);
[[maybe_unused]] void f2(void);
void f2(void) {
}
|
