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Authored by Sergey Sharybin (sergey) on Mar 10 2020, 3:22 PM.

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	// GCC case: gcc-9 -Wall -Wextra
	// Clang case: clang-9 -Wall -Wextra

	typedef enum MyEnum {
	A,
	B,
	C,
	} MyEnum;

	typedef enum MyOtherEnum {
	D,
	E,
	F,
	} MyOtherEnum;

	void foo(MyEnum a) {
	(void)a;
	}

	void bar(MyOtherEnum a) {
	(void)a;
	}

	void baz(void* a) {
	(void)a;
	}

	int main() {
	foo(10);
	foo(A \| D);

	bar(10);
	bar(A \| D);

	foo(D); // Fine GCC (implicitly from MyEnum -> int -> MyOtherEnum).
	// Warning in Clang.
	bar(A); // Fine GCC (implicitly from MyOtherEnum -> int -> MyEnum).
	// Warning in Clang.

	baz(A); // Fine in GCC (A is value of 0, which can be implicitly converted to pointer).
	// Warning in Clang.
	baz(D); // Fine in GCC (A is value of 0, which can be implicitly converted to pointer).
	// Warning in Clang.

	baz(B); // Warning in GCC,
	// Warning in Clang.
	baz(C); // Warning in GCC.
	// Warning in Clang.

	return 0;
	}

Sergey Sharybin (sergey) created this object with edit policy "Administrators".

Sergey Sharybin (sergey) updated the paste's language from autodetect to c.

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