Defined in header <fkYAML/node.hpp>
fkyaml::ordered_map::emplace¶
template <
typename KeyType,
detail::enable_if_t<detail::is_usable_as_key_type<key_compare, key_type, KeyType>::value, int> = 0>
std::pair<iterator, bool> emplace(KeyType&& key, const mapped_type& value) noexcept;
Emplaces a new key-value pair if the new key does not exist in the ordered_map object.
- KeyType
- A type compatible with the key type.
Parameters¶
key[in]- A key to the target value.
value[in]- A value associated to the key.
Return Value¶
A pair consisting of an iterator to the inserted element, or the already-existing element if no insertion happend, and a boolean denoting the insertion took place (true if insertion happened, false otherwise).
Example
#include <iostream>
#include <fkYAML/node.hpp>
int main() {
fkyaml::ordered_map<std::string, fkyaml::node> om = {{"foo", 123}, {"bar", "baz"}};
for (auto& pair : om) {
std::cout << pair.first << ": " << pair.second << std::endl;
}
return 0;
}
output: