/*******************************************
  Engineering 3891 Advanced Structured Programming
  Assignment: 3  Date Due: October 5th/2000
  Name: Daryl Martin
  Student #: 9713520
  Username: darylm
********************************************/

#include "assign3.h"

/******************************************************************
 * strDup -- Copy the string in the source array to the dest array.
 *
 * Parameters: 
 *  *dest -- The destination string (output)
 *  *source -- The origonal string (input)
 *
 * Modifies: none
 *
 * Returns: A copy of a string		Date:  10/05/00
 *******************************************************************/

void strDup(char *dest, const char *source)
{
	while (*source)
		*dest++ = *source++;	//Copy's the string to dest location
}

/******************************************************************
 * strCat -- Add the source string to the end of the dest string.
 *
 * Parameters: 
 *  *dest -- The destination string (output)
 *  *source -- The origonal string (input)
 *
 * Modifies: none
 *
 * Returns: two strings combined		Date:  10/05/00
 *******************************************************************/

void strCat(char *dest, const char *source)
{
	while (*dest)
		dest++;		//goes to the end of the string dest
	while (*source)
		*(dest++) = *(source++);	//Add's source to the string dest
}

/******************************************************************
 * strRev -- Reverses the string IN PLACE. e.g. "the" would become "eht"
 *			 and "function" would become "noitcnuf"
 * Parameters: 
 *  *theString -- The origonal string (input)
 *
 * Modifies: none
 *
 * Returns: The string reversed			Date:  10/05/00
 *******************************************************************/

void strRev(char *theString)
{
	int count=0;	//make variable count
	char temp;		//make a temporary character temp

	while (*(theString+count))	
		count++;  // Counts the number of characters

	for(int i = 1; i <= (count/2); i++)
	{
		temp = theString[i-1];		//loads this value into temp
		theString[i-1] = theString[count-i];
		theString[count-i] = temp;	//set's count-i to temp
	}
	return;
}