#include <iostream>
#include <iomanip>
#include <sstream>
#include <string>

std::string getFloatWithoutLeadingZero(float val)
{
    std::stringstream ss;
    ss << std::setw(2) << std::setprecision(1);
    ss << std::fixed << val;

    std::string str = ss.str();
    if(val > 0.f && val < 1.f)
        return str.substr(1, str.size()-1);
    else if(val < 0.f && val > -1.f)
        return "-" + str.substr(2, str.size()-1);
    return str;
}

int main()
{
	std::cout << getFloatWithoutLeadingZero( .1337f) << std::endl;
    std::cout << getFloatWithoutLeadingZero(-.1337f) << std::endl;
    std::cout << getFloatWithoutLeadingZero( 42.f) << std::endl;
    std::cout << getFloatWithoutLeadingZero(-42.f) << std::endl;

    return 0;
}