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/////////////////////////////////////////////////////////////////////////////
// Copyright (c) Electronic Arts Inc. All rights reserved.
/////////////////////////////////////////////////////////////////////////////
#include "EASTLTest.h"
#include <EASTL/numeric_limits.h>
struct NonNumericType
{
NonNumericType(int value) : mValue(value){}
bool operator==(int value) const { return mValue == value; }
int mValue; // This exists for the purpose of allowing the type to act like a number and allow the test logic below to work.
};
///////////////////////////////////////////////////////////////////////////////
// TestNumericLimits
//
int TestNumericLimits()
{
int nErrorCount = 0;
// To consider: Some day when we get more time, make a big table-driven set of
// expected results to all member variables and function calls.
// Test a type that is not numeric,.
EATEST_VERIFY(!eastl::numeric_limits<NonNumericType>::is_bounded);
EATEST_VERIFY( eastl::numeric_limits<NonNumericType>::max() == 0);
EATEST_VERIFY(!eastl::numeric_limits<const NonNumericType>::is_bounded);
EATEST_VERIFY( eastl::numeric_limits<const NonNumericType>::max() == 0);
EATEST_VERIFY(!eastl::numeric_limits<volatile NonNumericType>::is_bounded);
EATEST_VERIFY( eastl::numeric_limits<volatile NonNumericType>::max() == 0);
EATEST_VERIFY(!eastl::numeric_limits<const volatile NonNumericType>::is_bounded);
EATEST_VERIFY( eastl::numeric_limits<const volatile NonNumericType>::max() == 0);
// Test bool in all const-volatile variants.
EATEST_VERIFY(eastl::numeric_limits<bool>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<bool>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<const bool>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<const bool>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<volatile bool>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<volatile bool>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<const volatile bool>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<const volatile bool>::max() != 0);
// Do basic tests of the remaining types.
EATEST_VERIFY(eastl::numeric_limits<char>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<char>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<unsigned char>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<unsigned char>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<signed char>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<signed char>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<wchar_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<wchar_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<char16_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<char16_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<char32_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<char32_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<unsigned short>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<unsigned short>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<signed short>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<signed short>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<unsigned int>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<unsigned int>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<signed int>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<signed int>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<unsigned long>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<unsigned long>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<signed long>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<signed long>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<unsigned long long>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<unsigned long long>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<signed long long>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<signed long long>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<float>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<float>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<double>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<double>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<long double>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<long double>::max() != 0);
// We don't yet have a generic global way to identify what the name of the supported 128 bit type is.
// We just happen to know that for gcc/clang it is __int128.
#if (EA_COMPILER_INTMAX_SIZE >= 16) && (defined(EA_COMPILER_GNUC) || defined(EA_COMPILER_CLANG)) // If __int128_t/__uint128_t is supported...
EATEST_VERIFY(eastl::numeric_limits<__uint128_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<__uint128_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<__int128_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<__int128_t>::max() != 0);
#endif
// Test sized types.
EATEST_VERIFY(eastl::numeric_limits<uint8_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<uint8_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<int8_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<int8_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<uint16_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<uint16_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<int16_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<int16_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<uint32_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<uint32_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<int32_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<int32_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<uint64_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<uint64_t>::max() != 0);
EATEST_VERIFY(eastl::numeric_limits<int64_t>::is_bounded);
EATEST_VERIFY(eastl::numeric_limits<int64_t>::max() != 0);
return nErrorCount;
}
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