#include <limits>
#include <string>
#include <algorithm>
#include <type_traits>
#include <cmath>

template<typename T, std::enable_if_t<std::is_floating_point<T>::value, int> = 0>
std::string ToString(T value)
{
    std::string s;

    // Break into integral and fractional parts
    T i;
    T f = std::modf(value, &i);

    // Handle negatives
    bool neg = false;
    if (i < 0) {
        i = -i;
        neg = true;
    }

    // Convert the integral part
    do {
        s.push_back('0' + static_cast<int>(std::fmod(i, 10)));
        i = std::floor(i / 10);
    }
    while (i > 0);

    // Append '-' for negatives
    if (neg) {
        s.push_back('-');
    }

    // Reverse integral part and add decimal point
    std::reverse(s.begin(), s.end());
    s.push_back('.');

    // Convert the fractional part
    do {
        f = std::modf(f * 10, &i);
        s.push_back('0' + static_cast<int>(i));
    }
    while (f > 0);

    return s;
}