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// RUN: %clang_cc1 -verify -Wunused -Wused-but-marked-unused -Wunused-parameter -Wunused -Wno-strict-prototypes -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(void) __attribute__((unused(1, 2))); // expected-error {{'unused' 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(void) {
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}}
}
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