xtd 0.2.0
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xtd::collections::generic::helpers::equator< key_t > Struct Template Reference

Definition

template<typename key_t = void>
struct xtd::collections::generic::helpers::equator< key_t >

Implements a function object for performing comparisons. Unless specialised, invokes operator== on type type_t. xtd::equator with the key and the value strongly typed to be std::any.

class equator
Implements a function object for performing comparisons. Unless specialised, invokes operator== on ty...
Definition equator.h:37
Header
#include <xtd/collections/equator>
Namespace
xtd::collections::generic
Library
xtd.core
Examples
The following example show how to use xtd::collections::generic::helpers::equator with std::unordered_map.
auto key_values = std::unordered_map<xtd::date_time, xtd::string, xtd::collections::generic::helpers::hasher<xtd::date_time>, xtd::collections::generic::helpers::equator<xtd::date_time>, xtd::collections::generic::helpers::allocator<xtd::collections::generic::key_value_pair<const xtd::date_time, xtd::string>>> {};
key_values.insert({{1971, 1, 5}, "Birth date"});
std::allocator< type_t > allocator
Represent an allocator alias.
Definition allocator.h:35

Public Operators

bool operator() (const key_t &a, const key_t &b) const
 checks if the specified a and b keys are equal.
 

Member Function Documentation

◆ operator()()

template<typename key_t = void>
bool xtd::collections::generic::helpers::equator< key_t >::operator() ( const key_t &  a,
const key_t &  b 
) const
inline

checks if the specified a and b keys are equal.

Parameters
aThe first key to check.
bThe second key to check.
Returns
true if keys are equals; otherwise false.
Remarks
If key_t inherits from xtd::object, the xtd::object::equals method will be used; otherwise, the std::equal_to object function will be used.

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