rand
i = rand() % range;
int rand(void);
uint32_t rand;
rand = arc4random_uniform(sizeof(padchar) - 1);
*trv-- = padchar[rand];
printf("next random number = %d\n", rand());
#define random(x) rand(x)
*((int *)&nonce[i]) = rand();
VGLBitmapCopy(VGLDisplay, rand()%xsize, rand()%ysize,
VGLDisplay, rand()%xsize, rand()%ysize,
rand()%xsize, rand()%ysize);
VGLLine(VGLDisplay, rand()%xsize, rand()%ysize,
rand()%xsize, rand()%ysize, rand()%256);
VGLEllipse(VGLDisplay, rand()%xsize, rand()%ysize,
rand()%xsize/2, rand()%ysize/2, rand()%256);
rand();
master->key.low = rand();
master->key.high = rand();
double r = rand();