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// RUN: %clang_cc1 -fsyntax-only -verify=c2x -std=c2x %s
// RUN: %clang_cc1 -Wno-strict-prototypes -fsyntax-only -verify -std=c17 %s
// RUN: %clang_cc1 -fsyntax-only -fno-knr-functions -std=c99 -verify=c2x %s
// expected-no-diagnostics
void func(); // c2x-note {{'func' declared here}}
typedef void (*fp)();
void other_func(int i);
void call(void) {
func(1, 2, 3); // c2x-error {{too many arguments to function call, expected 0, have 3}}
fp call_me = func;
call_me(1, 2, 3); // c2x-error {{too many arguments to function call, expected 0, have 3}}
fp nope = other_func; // c2x-warning {{incompatible function pointer types initializing 'fp' (aka 'void (*)(void)') with an expression of type 'void (int)'}}
}
// Ensure these function declarations do not merge in C2x.
void redecl1(); // c2x-note {{previous declaration is here}}
void redecl1(int i); // c2x-error {{conflicting types for 'redecl1'}}
void redecl2(int i); // c2x-note {{previous declaration is here}}
void redecl2(); // c2x-error {{conflicting types for 'redecl2'}}
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