AnarchistGamers/openmw
1
0
Fork 0
mirror of https://gitlab.com/OpenMW/openmw.git synced 2025-09-18 08:56:10 -04:00
Code Issues Packages Projects Releases Wiki Activity

Use std::hash

Browse Source
This commit is contained in:
Evil Eye 2025-08-03 20:52:16 +02:00
parent 0d7efaa2e3
commit 485517cf64
1 changed files with 2 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
components/misc/strings/algorithm.hpp
View File

@ -86,7 +86,7 @@ namespace Misc::StringUtils
{ {
using is_transparent = void; using is_transparent = void;
constexpr std::size_t operator()(std::string_view str) const std::size_t operator()(std::string_view str) const
{ {
// FNV-1a // FNV-1a
std::uint64_t hash{ 0xcbf29ce484222325ull }; std::uint64_t hash{ 0xcbf29ce484222325ull };
@ -96,16 +96,7 @@ namespace Misc::StringUtils
hash ^= static_cast<std::uint64_t>(toLower(c)); hash ^= static_cast<std::uint64_t>(toLower(c));
hash *= prime; hash *= prime;
} }
if constexpr (sizeof(std::uint64_t) <= sizeof(std::size_t)) return std::hash<std::uint64_t>()(hash);
return hash;
else if constexpr (sizeof(std::uint32_t) == sizeof(std::size_t))
{
std::uint32_t low = hash & 0xFFFFFFFF;
std::uint32_t high = hash >> 32;
return low ^ high;
}
static_assert(sizeof(std::uint64_t) <= sizeof(std::size_t) || sizeof(std::uint32_t) == sizeof(std::size_t));
return {};
} }
}; };