forked from OSchip/llvm-project
44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
// RUN: %clang_cc1 -verify -Wunused -Wused-but-marked-unused -Wunused-parameter -Wunused -fsyntax-only %s
|
|
|
|
static void (*fp0)(void) __attribute__((unused));
|
|
|
|
static void __attribute__((unused)) f0(void);
|
|
|
|
// On K&R
|
|
int f1() __attribute__((unused));
|
|
|
|
int g0 __attribute__((unused));
|
|
|
|
int f2() __attribute__((unused(1, 2))); // expected-error {{attribute takes no arguments}}
|
|
|
|
struct Test0_unused {} __attribute__((unused));
|
|
struct Test0_not_unused {};
|
|
typedef int Int_unused __attribute__((unused));
|
|
typedef int Int_not_unused;
|
|
|
|
void test0() {
|
|
int x; // expected-warning {{unused variable}}
|
|
|
|
Int_not_unused i0; // expected-warning {{unused variable}}
|
|
Int_unused i1; // expected-warning {{'Int_unused' was marked unused but was used}}
|
|
|
|
struct Test0_not_unused s0; // expected-warning {{unused variable}}
|
|
struct Test0_unused s1; // expected-warning {{'Test0_unused' was marked unused but was used}}
|
|
}
|
|
|
|
int f3(int x) { // expected-warning{{unused parameter 'x'}}
|
|
return 0;
|
|
}
|
|
|
|
int f4(int x) {
|
|
return x;
|
|
}
|
|
|
|
int f5(int x __attribute__((__unused__))) {
|
|
return 0;
|
|
}
|
|
|
|
int f6(int x __attribute__((__unused__))) {
|
|
return x; // expected-warning{{'x' was marked unused but was used}}
|
|
}
|