dfx::Utils::TransparentHash Struct Reference

Transparent hash functor for string-like lookups. More...

#include <dfx-utilities/StringMap.hpp>

Public Types
using	is_transparent = void
	Marker enabling heterogeneous lookup in standard associative containers.

Public Member Functions
std::size_t	operator() (std::string_view str) const noexcept
	Hash a string view.

Detailed Description

Transparent hash functor for string-like lookups.

Intended for std::unordered_map with std::string keys, enabling lookups with std::string_view (and other compatible types) by advertising is_transparent.

Note

The container key type is still std::string. This only affects which argument types can be used for lookup operations (find/contains/etc.).

Member Typedef Documentation

is_transparent

using dfx::Utils::TransparentHash::is_transparent = void

Marker enabling heterogeneous lookup in standard associative containers.

Member Function Documentation

operator()()

std::size_t dfx::Utils::TransparentHash::operator() ( std::string_view str ) const

inlinenoexcept

Hash a string view.

Parameters

str	The string view to hash.

Returns

The hash value.

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The documentation for this struct was generated from the following file:

• lib/dfx-utilities/StringMap.hpp