llvm-project/clang/test/Sema/function.c

// RUN: clang %s -fsyntax-only -verify -pedantic
// PR1892
void f(double a[restrict][5]);  // should promote to restrict ptr.
void f(double (* restrict a)[5]);

int foo (__const char *__path);
int foo(__const char *__restrict __file);

void func(const char*); // expected-note {{previous declaration is here}}
void func(char*); // expected-error{{conflicting types for 'func'}}

void g(int (*)(const void **, const void **));
void g(int (*compar)()) {
}

void h();  // expected-note {{previous declaration is here}}
void h (const char *fmt, ...) {} // expected-error{{conflicting types for 'h'}}

// PR1965
int t5(b);          // expected-error {{parameter list without types}}
int t6(int x, g);   // expected-warning {{type specifier missing, defaults to 'int'}}

int t7(, );       // expected-error {{expected parameter declarator}} expected-error {{expected parameter declarator}}
int t8(, int a);  // expected-error {{expected parameter declarator}}
int t9(int a, );  // expected-error {{expected parameter declarator}}


// PR2042
void t10(){}
void t11(){t10(1);}

// PR3208
void t12(int) {}  // expected-error{{parameter name omitted}}

// PR2790
void t13() {
  return 0; // expected-warning {{void function 't13' should not return a value}}
}
int t14() {
  return; // expected-warning {{non-void function 't14' should return a value}}
}

// <rdar://problem/6097326>
y(y) { return y; } // expected-warning{{parameter 'y' was not declared, defaulting to type 'int'}} \
                   // expected-warning{{type specifier missing, defaults to 'int'}}


// PR3137, <rdar://problem/6127293>
extern int g0_3137(void);
void f0_3137() {
  int g0_3137(void);
}
void f1_3137() {
  int (*fp)(void) = g0_3137;
}