A C++17 tool convertes hexadecima into floating-point numbers. It features functions for parsing input, swapping byte order, and converting to float. The code emphasizes clarity, efficiency, and robust error handling to ensure reliable performance. Was actually derived from https://gregstoll.com/~gregstoll/floattohex/

hex_float_converter_endianness.cpp

#include <iostream>
#include <iomanip>
#include <string>
#include <stdexcept>
#include <cstdint>
#include <cstring>
#include <limits>
#include <cstdlib>

float parse_hex_to_float(const std::string& hex_str) {
    uint32_t value = std::stoul(hex_str, nullptr, 16);
    value = ((value & 0x000000FFU) << 24) |
            ((value & 0x0000FF00U) << 8)  |
            ((value & 0x00FF0000U) >> 8)  |
            ((value & 0xFF000000U) >> 24);
    float result;
    std::memcpy(&result, &value, sizeof(result));
    return result;
}

int main() {
    try {
        std::string input = "0000E03F";
        float float_result = parse_hex_to_float(input);
        std::cout << "Output float: "
                  << std::fixed
                  << std::setprecision(std::numeric_limits<float>::digits10)
                  << float_result << "\n";
        return EXIT_SUCCESS;
    }
    catch (const std::exception& exception) {
        std::cerr << "Error: " << exception.what() << "\n";
        return EXIT_FAILURE;
    }
}

Original source code in C/C++.
https://gregstoll.com/~gregstoll/floattohex/floattohexmodule.txt

Credits to original author.
Website: https://gregstoll.com/~gregstoll/floattohex/

Optimized by OpenAI Model o1-Mini.