Casting float to int (bitwise) in C

Question

Given the 32 bits that represent an IEEE 754 floating-point number, how can the number be converted to an integer, using integer or bit operations on the representation (rat

Answer 1

// With the proviso that your compiler implementation uses
// the same number of bytes for an int as for a float:
// example float
float f = 1.234f;
// get address of float, cast as pointer to int, reference
int i = *((int *)&f);
// get address of int, cast as pointer to float, reference
float g = *((float *)&i);
printf("%f %f %08x\n",f,g,i);