Defined in header <fkYAML/node.hpp>
fkyaml::basic_node::operator<=¶
Less-than-or-equal-to operator.
Check if this object is less than or equal to rhs.
The operator returns the result of !(rhs < *this). (see operator<)
Parameters¶
rhs[in]- A
basic_nodeobject to be compared withthisobject.
Return Value¶
true if this is less than or equal to rhs, false otherwise.
Example
#include <iomanip>
#include <iostream>
#include <fkYAML/node.hpp>
int main() {
// create YAML nodes.
fkyaml::node seq_1 = {1, 2, 3};
fkyaml::node seq_2 = {1, 2, 4};
fkyaml::node map_1 = {{"foo", true}, {"bar", 123}};
fkyaml::node map_2 = {{"bar", 123}, {"foo", true}};
fkyaml::node null_1 = nullptr;
fkyaml::node null_2 = nullptr;
fkyaml::node bool_1 = false;
fkyaml::node bool_2 = true;
fkyaml::node integer_1 = 321;
fkyaml::node integer_2 = 123;
fkyaml::node float_1 = 1.23;
fkyaml::node float_2 = 3.14;
fkyaml::node string_1 = "foo";
fkyaml::node string_2 = "bar";
// the same type
std::cout << std::boolalpha;
std::cout << (seq_1 <= seq_2) << std::endl;
std::cout << (map_1 <= map_2) << std::endl;
std::cout << (null_1 <= null_2) << std::endl;
std::cout << (bool_1 <= bool_2) << std::endl;
std::cout << (integer_1 <= integer_2) << std::endl;
std::cout << (float_1 <= float_2) << std::endl;
std::cout << (string_1 <= string_2) << std::endl;
// different types
std::cout << (bool_1 <= string_1) << std::endl;
std::cout << (float_2 <= seq_2) << std::endl;
return 0;
}
output: