Defined in header <fkYAML/node.hpp>

fkyaml::basic_node::as_float

float_number_type& as_float();
const float_number_type& as_float() const;

Returns (const) reference to the float node value.
If the current node value is not a floating point value, a fkyaml::type_error will be thrown.

Return Value

(const) reference to the float node value.

Examples

Example

#include <iostream>
#include <fkYAML/node.hpp>

int main() {
    // create a float node.
    fkyaml::node n = 3.14;

    // get reference to the float value from a non-const node.
    // use `auto&` or `fkyaml::node::float_number_type&` for forward compatibility.
    auto& f = n.as_float();
    // get const reference to the float value from a const node.
    const fkyaml::node cn = n;
    const auto& cf = cn.as_float();

    // modify the float value.
    f = 1.41;

    std::cout << f << std::endl;
    std::cout << cf << std::endl;
}

output:

1.41
3.14

See Also

• node_type