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NativeVertexFormat: Collapse std namespace and mark hash noexcept 

We can just tag the std:: onto the end of the specialization to make it
less noisy.

Also mark it as noexcept, since hashes shouldn't throw exceptions.
This commit is contained in:
Lioncash 2024-01-31 12:37:41 -05:00
parent 30fdf25f8f
commit 5bfaa3a966
1 changed files with 6 additions and 6 deletions
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12
Source/Core/VideoCommon/NativeVertexFormat.h
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@ -79,14 +79,12 @@ struct PortableVertexDeclaration
static_assert(std::is_trivially_copyable_v<PortableVertexDeclaration>, static_assert(std::is_trivially_copyable_v<PortableVertexDeclaration>,
"Make sure we can memset-initialize"); "Make sure we can memset-initialize");
namespace std
{
template <> template <>
struct hash<PortableVertexDeclaration> struct std::hash<PortableVertexDeclaration>
{ {
// Implementation from Wikipedia. // Implementation from Wikipedia.
template <typename T> template <typename T>
u32 Fletcher32(const T& data) const static u32 Fletcher32(const T& data)
{ {
static_assert(sizeof(T) % sizeof(u16) == 0); static_assert(sizeof(T) % sizeof(u16) == 0);
@ -114,9 +112,11 @@ struct hash<PortableVertexDeclaration>
sum2 = (sum2 & 0xffff) + (sum2 >> 16); sum2 = (sum2 & 0xffff) + (sum2 >> 16);
return (sum2 << 16 | sum1); return (sum2 << 16 | sum1);
} }
size_t operator()(const PortableVertexDeclaration& decl) const { return Fletcher32(decl); } size_t operator()(const PortableVertexDeclaration& decl) const noexcept
{
return Fletcher32(decl);
}
}; };
} // namespace std
// The implementation of this class is specific for GL/DX, so NativeVertexFormat.cpp // The implementation of this class is specific for GL/DX, so NativeVertexFormat.cpp
// is in the respective backend, not here in VideoCommon. // is in the respective backend, not here in VideoCommon.