How To Create Hex or Binary Value from Float Point how ho use : compile first using 'g++ float2hex.cpp' and then rename a.out to float2hex last copy float2hex into /usr/local/bin result : Macintosh:masbog$ float2hex 2.34 Your Float value is : 2.340000 Result Float to Hex is : 0x4015C28F Your binary value is : 0100 0000 0001 0101 0010 1000

float2hex.cpp

#include <bitset>
#include <string>
#include <iostream>
#include <sstream>

using namespace std;

int main(int argc, char **argv) 
{
    if(int(argc) > 1)
{
    float a = atof(argv[1]);
    printf("Your Float value is : %f\nResult Float to Hex is : 0x%X\n", a, *(int *)&a);
    
    char buffer[8];
    int n;
    n = sprintf(buffer, "%X", *(int *)&a);
    
    std::string sReturn;
    for (int i = 0; i < n; ++i)
    {
        switch (buffer [i])
        {
            case '0': sReturn.append ("0000 "); break;
            case '1': sReturn.append ("0001 "); break;
            case '2': sReturn.append ("0010 "); break;
            case '3': sReturn.append ("0011 "); break;
            case '4': sReturn.append ("0100 "); break;
            case '5': sReturn.append ("0101 "); break;
            case '6': sReturn.append ("0110 "); break;
            case '7': sReturn.append ("0111 "); break;
            case '8': sReturn.append ("1000 "); break;
            case '9': sReturn.append ("1001 "); break;
            case 'a': sReturn.append ("1010 "); break;
            case 'b': sReturn.append ("1011 "); break;
            case 'c': sReturn.append ("1100 "); break;
            case 'd': sReturn.append ("1101 "); break;
            case 'e': sReturn.append ("1110 "); break;
            case 'f': sReturn.append ("1111 "); break;
        }
    }
    
    printf("Your binary value is : %s\n", sReturn.c_str());
}else
{
    printf("Please use example like this : \"float2hex 2.34\"\n");
}
return 0;
}