normalize_vector (3) - Linux Manuals
normalize_vector: Converts the vector to a unit vector. Allegro game programming library.
NAME
normalize_vector, normalize_vector_f - Converts the vector to a unit vector. Allegro game programming library.SYNOPSIS
#include <allegro.h>
void normalize_vector(fixed *x, fixed *y, fixed *z);
void normalize_vector_f(float *x, float *y, float *z);