Disable usage of long double in static_assert with clang

Signed-off-by: Ian <[email protected]>

Author: Rinzii

include/ccmath/internal/support/bits.hpp

@@ -30,7 +30,7 @@ namespace ccm::support
 {
 
 	template <typename To, typename From>
-	inline constexpr std::enable_if_t<
+	constexpr std::enable_if_t<
 		sizeof(To) == sizeof(From) && std::is_trivially_constructible_v<To> && std::is_trivially_copyable_v<To> && std::is_trivially_copyable_v<From>, To>
 	bit_cast(const From & from)
 	{

include/ccmath/internal/support/fp/fp_bits.hpp

@@ -32,7 +32,6 @@ namespace ccm::support::fp
 	/// All supported floating point types
 	enum class FPType : std::uint8_t
 	{
-		eBinary16, // TODO: Currently don't handle float16 but might in the future
 		eBinary32,
 		eBinary64,
 		eBinary80,
@@ -49,16 +48,6 @@ namespace ccm::support::fp
 		{
 		};
 
-		template <>
-		struct FPLayout<FPType::eBinary16>
-		{
-			using storage_type									  = std::uint16_t;
-			static constexpr std::int_fast32_t sign_length		  = 1;
-			static constexpr std::int_fast32_t exponent_length	  = 5;
-			static constexpr std::int_fast32_t significand_length = 10;
-			static constexpr std::int_fast32_t fraction_length	  = significand_length;
-		};
-
 		template <>
 		struct FPLayout<FPType::eBinary32>
 		{
@@ -827,9 +816,6 @@ namespace ccm::support::fp
 			else if constexpr (LDBL_MANT_DIG == 64) { return FPType::eBinary80; }	// long double is 80-bits
 			else if constexpr (LDBL_MANT_DIG == 113) { return FPType::eBinary128; } // long double is 128-bits
 		}
-#if defined(CCM_TYPES_HAS_FLOAT128)
-		else if constexpr (std::is_same_v<UnqualT, types::float128>) { return FPType::eBinary128; }
-#endif
 		else { static_assert(support::always_false<UnqualT>, "Unsupported type"); }
 		return FPType::eBinary32; // This will never be reached due to assert. Only here to appease the compiler.
 	}
@@ -841,7 +827,7 @@ namespace ccm::support::fp
 	template <typename T>
 	struct FPBits final : internal::FPRepImpl<get_fp_type<T>(), FPBits<T>>
 	{
-		static_assert(std::is_floating_point_v<T>, "FPBits instantiated with invalid type.");
+		static_assert(support::traits::ccm_is_floating_point_v<T>, "FPBits instantiated with invalid type.");
 		using BASE		   = internal::FPRepImpl<get_fp_type<T>(), FPBits<T>>;
 		using storage_type = typename BASE::storage_type;
 
@@ -850,7 +836,7 @@ namespace ccm::support::fp
 		template <typename XType>
 		inline constexpr explicit FPBits(XType x)
 		{
-			using UnQual = std::remove_cv_t<XType>;
+			using UnQual = typename std::remove_cv_t<XType>;
 			if constexpr (std::is_same_v<UnQual, T>) { BASE::bits = support::bit_cast<storage_type>(x); }
 			else if constexpr (std::is_same_v<UnQual, storage_type>) { BASE::bits = x; }
 			else

include/ccmath/internal/types/big_int.hpp

@@ -194,10 +194,7 @@ namespace ccm::types
 			}
 #endif
 #ifdef CCM_TYPES_HAS_INT128
-			else if constexpr (std::is_same_v<word, std::uint64_t>)
-			{
-				return split<__uint128_t>(static_cast<__uint128_t>(lhs) * static_cast<__uint128_t>(rhs));
-			}
+			else if constexpr (std::is_same_v<word, std::uint64_t>) { return split<__uint128_t>(__uint128_t(lhs) * __uint128_t(rhs)); }
 #endif
 			else
 			{
@@ -725,7 +722,7 @@ namespace ccm::types
 		 */
 		[[nodiscard]] constexpr bool is_neg() const { return SIGNED && get_msb(); }
 
-		template <size_t OtherBits, bool OtherSigned, typename OtherWordType>
+		template <std::size_t OtherBits, bool OtherSigned, typename OtherWordType>
 		constexpr explicit operator BigInt<OtherBits, OtherSigned, OtherWordType>() const
 		{
 			return BigInt<OtherBits, OtherSigned, OtherWordType>(this);
@@ -1491,7 +1488,7 @@ namespace ccm::support
 		(sizeof(To) == sizeof(From)) && std::is_trivially_copyable_v<To> && std::is_trivially_copyable_v<From> && types::is_big_int<To>::value, To>
 	bit_cast(const From & from)
 	{
-		To out;
+		To out{};
 		using Storage = decltype(out.val);
 		out.val		  = support::bit_cast<Storage>(from);
 		return out;

include/ccmath/internal/types/int128_types.hpp

@@ -12,9 +12,7 @@
 
 #include "ccmath/internal/config/type_support.hpp"
 
-#ifndef CCM_TYPES_HAS_INT128
-	#include "ccmath/internal/types/big_int.hpp"
-#endif
+#include "ccmath/internal/types/big_int.hpp"
 
 namespace ccm::types
 {

test/fmanip/ldexp_test.cpp

@@ -26,7 +26,14 @@ TYPED_TEST_SUITE(CcmathFmanipTests, TestTypes);
 
 TYPED_TEST(CcmathFmanipTests, LdexpStaticAssert)
 {
+#if defined(__clang__) // long double does not really work on static_assert for clang. This is due to how __builtin_bit_cast works on clang.
+	if constexpr (!std::is_same_v<long double, TypeParam>)
+	{
+		static_assert(ccm::ldexp(static_cast<TypeParam>(1.0), 0) == ccm::ldexp(static_cast<TypeParam>(1.0), 0));
+	}
+#else
 	static_assert(ccm::ldexp(static_cast<TypeParam>(1.0), 0) == ccm::ldexp(static_cast<TypeParam>(1.0), 0));
+#endif
 }
 
 TYPED_TEST(CcmathFmanipTests, LdexpBasic)