C Function to Convert float to byte array

Question

I\'m trying to make a function that will accept a float variable and convert it into a byte array. I found a snippet of code that works, but would like to reuse it in a func

Answer 1

Although the other answers show how to accomplish this using a union, you can use this to implement the function you want like this:

byte[] float2Bytes(float val)
{
    my_union *u = malloc(sizeof(my_union));
    u->float_variable = val;
    return u->bytes_array;
}

or

void float2Bytes(byte* bytes_array, float val)
{
    my_union u;
    u.float_variable = val;
    memcpy(bytes_array, u.bytes_array, 4);
}