Defined in header <fkYAML/node.hpp>
fkyaml::basic_node::as_map¶
Returns (const) reference to the mapping node value.
If the current node value is not a mapping, a fkyaml::type_error
will be thrown.
Return Value¶
(const) reference to the mapping node value.
Examples¶
Example
#include <iostream>
#include <fkYAML/node.hpp>
int main() {
// create a sequence node.
fkyaml::node n = {{"foo", true}, {"bar", 123}};
// get reference to the sequence value from a non-const node.
// use `auto&` or `fkyaml::node::sequence_type&` for forward compatibility.
auto& m = n.as_map();
// get const reference to the sequence value from a const node.
const fkyaml::node cn = n;
const auto& cm = cn.as_map();
// modify the sequence value.
m.emplace("baz", 3.14);
for (auto& pair : m) {
std::cout << pair.first << ": " << pair.second << std::endl;
}
std::cout << std::endl;
for (const auto& cpair : cm) {
std::cout << cpair.first << ": " << cpair.second << std::endl;
}
}
output: