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Small cleanup in StringHashEqT definition

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greg7mdp
2022-07-22 19:03:02 -04:00
parent 25a6a5024d
commit f71777d540
1 changed files with 12 additions and 14 deletions
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parallel_hashmap/phmap.h
Vendored
+12 -14
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@@ -4336,28 +4336,26 @@ public:
#if PHMAP_HAVE_STD_STRING_VIEW
// support char16_t wchar_t ....
template<class CharT>
struct StringHashT
{
using is_transparent = void;
size_t operator()(std::basic_string_view<CharT> v) const {
std::string_view bv{reinterpret_cast<const char*>(v.data()), v.size() * sizeof(CharT)};
return std::hash<std::string_view>()(bv);
}
};
// Supports heterogeneous lookup for basic_string<T>-like elements.
template<class CharT>
struct StringHashEqT
{
using Hash = StringHashT<CharT>;
struct Hash
{
using is_transparent = void;
size_t operator()(std::basic_string_view<CharT> v) const {
std::string_view bv{
reinterpret_cast<const char*>(v.data()), v.size() * sizeof(CharT)};
return std::hash<std::string_view>()(bv);
}
};
struct Eq {
using is_transparent = void;
bool operator()(std::basic_string_view<CharT> lhs, std::basic_string_view<CharT> rhs) const {
bool operator()(std::basic_string_view<CharT> lhs,
std::basic_string_view<CharT> rhs) const {
return lhs == rhs;
}
};