67 lines
1.7 KiB
C
67 lines
1.7 KiB
C
// RUN: %clang_cc1 -fsyntax-only -Wunused-parameter -Wused-but-marked-unused -verify %s
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void f1(void) {
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int x, y, z;
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#pragma unused(x)
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#pragma unused(y, z)
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int w; // FIXME: We should emit a warning that 'w' is unused.
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#pragma unused w // expected-warning{{missing '(' after '#pragma unused' - ignoring}}
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}
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void f2(void) {
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int x, y;
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#pragma unused(x,) // expected-warning{{expected '#pragma unused' argument to be a variable name}}
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#pragma unused() // expected-warning{{expected '#pragma unused' argument to be a variable name}}
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}
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void f3(void) {
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#pragma unused(x) // expected-warning{{undeclared variable 'x' used as an argument for '#pragma unused'}}
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}
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void f4(void) {
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int w; // FIXME: We should emit a warning that 'w' is unused.
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#pragma unused((w)) // expected-warning{{expected '#pragma unused' argument to be a variable name}}
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}
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int k;
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void f5(void) {
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#pragma unused(k) // expected-warning{{only local variables can be arguments to '#pragma unused'}}
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}
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void f6(void) {
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int z; // no-warning
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{
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#pragma unused(z) // no-warning
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}
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}
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void f7() {
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int y;
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#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'}}
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}
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int f8(int x) { // expected-warning{{unused parameter 'x'}}
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return 0;
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}
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int f9(int x) {
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return x;
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}
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int f10(int x) {
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#pragma unused(x)
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return 0;
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}
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int f11(int x) {
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#pragma unused(x)
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return x; // expected-warning{{'x' was marked unused but was used}}
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}
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int f12(int x) {
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int y = x;
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#pragma unused(x) // expected-warning{{'x' was marked unused but was used}}
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return y;
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}
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