main.cpp

///////////////////////////////////////////////////////////////////////////////
// M.I.T. License
//
// Copyright (c) 2022 Jonathan Adams Watmough
//
// Permission is hereby granted, free of charge, to any person obtaining a
// copy of this software and associated documentation files
// (the "Software"), to deal in the Software without restriction,
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// and to permit persons to whom the Software is furnished to do so,
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//
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// SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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///////////////////////////////////////////////////////////////////////////////


///////////////////////////////////////////////////////////////////////////////
// main.cpp
//
// Simple demo of check_inlined.hpp.
// Creates a class and each function is able to check whether in-lined or not.
//

#include "./check_inlined.hpp"

#include <cstdio>

int GLOBALX{0};

class SimpleInlineTest {
public:
	// func3 - INLINED
	static inline __attribute((always_inline)) void func3()
	{
		CHECK_INLINED(SimpleInlineTest,func3,fINLINED)
        printf("%40s %6s inlined.\n", __PRETTY_FUNCTION__, fINLINED ? "IS" : "IS NOT");
		GLOBALX++;
	}

	// func2 - NOT INLINED
	static void __attribute((noinline)) func2()
	{
		CHECK_INLINED(SimpleInlineTest,func2,fINLINED)
        printf("%40s %6s inlined.\n", __PRETTY_FUNCTION__, fINLINED ? "IS" : "IS NOT");
		GLOBALX++;
		func3();
	}

	// func1 - NOT INLINED (can be switched)
	// func1 - INLINED (can be switched)
	inline void __attribute((always_inline)) func1()
	//void __attribute((noinline)) func1()
	{
		CHECK_INLINED(SimpleInlineTest,func1,fINLINED)
        printf("%40s %6s inlined.\n", __PRETTY_FUNCTION__, fINLINED ? "IS" : "IS NOT");
		GLOBALX++;
		func2();
	}

	// func0 - NOT INLINED
	void __attribute((noinline)) func0()
	{
		CHECK_INLINED(SimpleInlineTest,func0,fINLINED)
        printf("%40s %6s inlined.\n", __PRETTY_FUNCTION__, fINLINED ? "IS" : "IS NOT");
		GLOBALX++;
		func1();
	}
};

int main()
{
	GLOBALX=0;
	SimpleInlineTest simpleTest;
    printf("\nmain.cpp: A test of check_inlined.hpp macro: \n\nCHECK_INLINED(CLASSNAME,FUNCTION,IS_INLINED)\n"
           "if (IS_INLINED) { DoThis(); } else { DoThat(); };\n\n");
	simpleTest.func0();
    printf("\nTry building with -O0 or -O3 or -Os.\n\n");
}