/*
 * File asm/decimal5.c from textbook (CS:App)
 *
 * Used to illustrate compilation of array access
 * and pointer arithmetic
 */

/* $begin decimal5-c */
int decimal5(int *x) 
{ 
    int i; 
    int val = 0; 

    for (i = 0; i < 5; i++) 
	val = (10 * val) + x[i]; 

    return val; 
} 
/* $end decimal5-c */


/* $begin decimal5opt-c */
int decimal5_opt(int *x) 
{ 
    int val = 0; 
    int *xend = x + 4; 

    do { 
	val = (10 * val) + *x; 
	x++; 
    } while (x <= xend); 

    return val; 
} 
/* $end decimal5opt-c */