/*
	File Name	: valunum.c
	Course Number   : ISYS 291
	Student Name    : Jason Gradziel
	Student Number  : 826-135-535
	Professors Name : Brian Perry
	Lab Title       :
	*/

	int valunum (char* s)
	{
		int error = 0;
		int i = 0;

		for (i=0; s[i]!='\0'; i++)
		{
			if ( (s[i]<'0') || (s[i]>'9') )
			{
				error =11;
				break;
			}
		}

		return error;
	}