Defined in header <fkYAML/node.hpp>
fkyaml::ordered_map::find¶
template <
typename KeyType,
detail::enable_if_t<detail::is_usable_as_key_type<key_compare, key_type, KeyType>::value, int> = 0>
iterator find(KeyType&& key) noexcept;
template <
typename KeyType,
detail::enable_if_t<detail::is_usable_as_key_type<key_compare, key_type, KeyType>::value, int> = 0>
const_iterator find(KeyType&& key) const noexcept;
Find a value with the given key.
Template Parameters¶
- KeyType
- A type compatible with the key type.
Parameters¶
key[in]- A key to the target value.
Return Value¶
An iterator to the target value if found, the result of end() otherwise.
Example
#include <iomanip>
#include <iostream>
#include <fkYAML/node.hpp>
int main() {
fkyaml::ordered_map<std::string, fkyaml::node> om = {{"foo", 123}, {"bar", "baz"}};
// insert a value with a new key.
auto ret = om.emplace("qux", 3.14);
if (ret.second) {
std::cout << "emplacement took place." << std::endl;
}
std::cout << ret.first->second << std::endl;
// insert a value with an existing key.
auto ret2 = om.emplace("foo", true);
if (!ret2.second) {
std::cout << "emplacement did not take place." << std::endl;
}
std::cout << ret2.first->second << std::endl;
return 0;
}
output: