Re: float->bits

[Marcus G. Daniels]

>>>>> "JI" == Jonathan Impett <address@hidden> writes:

JI> In attempting to breed small networks within swarms, I
JI> need to read the single-precision floating point weights of the
JI> nets as vectors of bits for the GA, and vice-versa.  Essentially,
JI> I need a float and an array of 32 chars which can exchange binary
JI> sequences. 

Well, you can cast the address of the float to an unsigned char pointer. 
It's not portable, of course...

E.g.

int
main ()
{
  float val = 2.5;
  float newval;
  unsigned char *buf = (unsigned char *) &val;
  unsigned char *newbuf = (unsigned char *)&newval;

  newbuf[0] = buf[0];
  newbuf[1] = buf[1];
  newbuf[2] = buf[2];
  newbuf[3] = buf[3];

  printf ("%f\n", newval);
}

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