Using functions that operate on arrays

An array is a collection of variables bound together by a common base name and an offset from that base. In nearly every respect, we can treat an individual element of an array just as we would any other variable. Even with function parameters, array elements can be passed into them as with regular variables, as follows:

#include <math.h>

int anArray[10] = {0};

anArray[3] = 5;

anArray[3] = pow( anArray[3] , 2 );

The fourth element of the array is assigned a value of 5. The function declared in math.h, pow(), is called with the value found in the fourth element of the array and is raised to the power of 2 (squared) and assigned back to the fourth element of the array, which now has a value of 25.

We could write a function that operations on anArray, as follows:

int find10Min( int anArray[10] );

This function prototype specifies that the function definition will only take arrays of size 10 and no other. This is perfectly...