prog.10.2.c

// Function to count the number of characters in a string

#include <stdio.h>

int stringLength (const char string[])
{
	int count = 0;

	while ( string[count] != '\0' )
		++count;

	return count;
}

int main (void)
{
	int		stringLength (const char string[]);
	const	char word1[] = { 'a', 's', 't', 'e', 'r', '\0' };
	const	char word2[] = { 'a', 't', '\0' };
	const	char word3[] = { 'a', 'w', 'e', '\0' };

	printf ("%i    %i    %i\n", stringLength (word1),
			stringLength (word2), stringLength (word3));

	return 0;
}