#include <iostream>
#include <string>
 
const uint STRING_LENGTH = 25;
 
std::string&& fix_length(std::string &&s) {
    s.resize(STRING_LENGTH, ' ');
    return std::move(s);
}
 
struct parameter {
    double value;
    std::string name;
 
    parameter(double _value, std::string _name)
        : value(_value), name(fix_length(std::move(_name)))
    {
    }
};
 
 
int main() {
    parameter A(0.5, "my_variable");
    parameter B(-0.1, "my other variable with the name that is too long and has to be truncated!");
 
    std::cout << "parameter name: " << A.name << "\tis:\t" << A.value << '\n';
    std::cout << "parameter name: " << B.name << "\tis:\t" << B.value << '\n';
}

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