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// RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -Wused-but-marked-unused -Wunused -verify %s
void f1(void) {
int x, y, z;
#pragma unused(x)
#pragma unused(y, z)
int w; // expected-warning {{unused}}
#pragma unused w // expected-warning{{missing '(' after '#pragma unused' - ignoring}}
}
void f2(void) {
int x, y; // expected-warning {{unused}} expected-warning {{unused}}
#pragma unused(x,) // expected-warning{{expected '#pragma unused' argument to be a variable name}}
#pragma unused() // expected-warning{{expected '#pragma unused' argument to be a variable name}}
}
void f3(void) {
#pragma unused(x) // expected-warning{{undeclared variable 'x' used as an argument for '#pragma unused'}}
}
void f4(void) {
int w; // expected-warning {{unused}}
#pragma unused((w)) // expected-warning{{expected '#pragma unused' argument to be a variable name}}
}
void f6(void) {
int z; // no-warning
{
#pragma unused(z) // no-warning
}
}
void f7(void) {
int y;
#pragma unused(undeclared, undefined, y) // expected-warning{{undeclared variable 'undeclared' used as an argument for '#pragma unused'}} expected-warning{{undeclared variable 'undefined' used as an argument for '#pragma unused'}}
}
int f8(int x) { // expected-warning{{unused parameter 'x'}}
return 0;
}
int f9(int x) {
return x;
}
int f10(int x) {
#pragma unused(x)
return 0;
}
int f11(int x) {
#pragma unused(x)
return x; // expected-warning{{'x' was marked unused but was used}}
}
int f12(int x) {
int y = x;
#pragma unused(x) // expected-warning{{'x' was marked unused but was used}}
return y;
}
// rdar://8793832
static int glob_var = 0;
#pragma unused(glob_var)
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