minix/external/bsd/llvm/dist/clang/test/Sema/warn-unused-function.c
Lionel Sambuc f4a2713ac8 Importing netbsd clang -- pristine
Change-Id: Ia40e9ffdf29b5dab2f122f673ff6802a58bc690f
2014-07-28 17:05:57 +02:00

66 lines
1.6 KiB
C

// RUN: %clang_cc1 -fsyntax-only -Wused-but-marked-unused -Wunused-function -Wunneeded-internal-declaration -verify %s
// RUN: %clang_cc1 -fsyntax-only -verify -Wunused %s
// RUN: %clang_cc1 -fsyntax-only -verify -Wall %s
void foo() {}
static void f2() {}
static void f1() {f2();} // expected-warning{{unused}}
static int f0() { return 17; } // expected-warning{{not needed and will not be emitted}}
int x = sizeof(f0());
static void f3();
extern void f3() { } // expected-warning{{unused}}
inline static void f4();
void f4() { } // expected-warning{{unused}}
static void __attribute__((used)) f5() {}
static void f6();
static void __attribute__((used)) f6();
static void f6() {};
static void f7(void);
void f8(void(*a0)(void));
void f9(void) { f8(f7); }
static void f7(void) {}
__attribute__((unused)) static void bar(void);
void bar(void) { }
__attribute__((constructor)) static void bar2(void);
void bar2(void) { }
__attribute__((destructor)) static void bar3(void);
void bar3(void) { }
static void f10(void); // expected-warning{{unused}}
static void f10(void);
static void f11(void);
static void f11(void) { } // expected-warning{{unused}}
static void f12(void) { } // expected-warning{{unused}}
static void f12(void);
// PR7923
static void unused(void) { unused(); } // expected-warning{{not needed and will not be emitted}}
// rdar://8728293
static void cleanupMalloc(char * const * const allocation) { }
void f13(void) {
char * const __attribute__((cleanup(cleanupMalloc))) a;
(void)a;
}
// rdar://12233989
extern void a(void) __attribute__((unused));
extern void b(void) __attribute__((unused));
void b(void)
{
}
void a(void)
{
b();
}