Mcucpp

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#include <gtest\gtest.h>
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#include <div.h>
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#include <fastdiv10.h>
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#include <fstream>
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#include <cstdlib>
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void GenerateTestUnsigned64x32()
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{
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	std::ofstream file("div64x32uTests.h", std::ios::out);
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	int testCount = 1000;
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	for(int i=0; i<testCount; i++)
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	{
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		uint64_t u = (uint64_t)rand() ^ ((uint64_t)rand() << 16) ^ ((uint64_t)rand() << 32);
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		uint32_t v = (uint32_t)rand() ^ ((uint32_t)rand() << 16);
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		uint32_t q = (uint32_t)(u / v);
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		file << "EXPECT_EQ(" << q << "ul, div64x32u(" << u << "ull, " << v << "ul, 0) );" << std::endl;
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	}
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}
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TEST(Div, Test64x32unsigned)
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{
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	//GenerateTestUnsigned64x32();
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	#include "div64x32uTests.h"
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}
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void GenerateTestSigned64x32()
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{
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	std::ofstream file("div64x32sTests.h", std::ios::out);
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	int testCount = 1000;
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	for(int i=0; i<testCount; i++)
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	{
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		int64_t u = (int64_t)rand() ^ ((int64_t)rand() << 16) ^ ((int64_t)rand() << 32);
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		int32_t v = (int32_t)rand() ^ ((int32_t)rand() << 16);
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		if(rand() & 1)
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			u *= -1;
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		if(rand() & 1)
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			v *= -1;
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		int32_t q = (int32_t)(u / v);
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		file << "EXPECT_EQ(" << q << "l, div64x32s(" << u << "ll, " << v << "l, 0) );" << std::endl;
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	}
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}
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TEST(Div, Test64x32signed)
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{
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	//GenerateTestSigned64x32();
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	#include "div64x32sTests.h"
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}
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TEST(Div10, FastDiv10)
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{
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	using namespace Mcucpp;
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	for(uint32_t i = 0; i < 256; i++)
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	{
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		divmod10_t<uint8_t> res8 = divmodu10((uint8_t)i);
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		EXPECT_EQ(i/10, res8.quot);
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		EXPECT_EQ(i%10, res8.rem);
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	}
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	for(uint32_t i = 0; i < 0x00010000; i++)
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	{
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		divmod10_t<uint16_t> res16 = divmodu10((uint16_t)i);
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		EXPECT_EQ(i/10, res16.quot);
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		EXPECT_EQ(i%10, res16.rem);
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	}
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	divmodu10((unsigned)100);
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	divmodu10((unsigned long)100);
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	divmodu10((unsigned short)100);
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	divmodu10((unsigned long long)100);
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}
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