/*
 *  ======================================================================
 *  File1 : Demonstrate scope of variables and functions in a two
 *          file C program.
 *
 *  Copyright (C) 1998 by Mark Austin and David Chancogne.
 *                                                                     
 *  This software is provided "as is" without express or implied warranty.
 *  Permission is granted to use this software on any computer system,
 *  and to redistribute it freely, subject to the following restrictions:
 * 
 *  1. The authors are not responsible for the consequences of use of
 *     this software, even if they arise from defects in the software.
 *  2. The origin of this software must not be misrepresented, either
 *     by explicit claim or by omission.
 *  3. Altered versions must be plainly marked as such, and must not
 *     be misrepresented as being the original software.
 *  4. This notice is to remain intact.
 * 
 *  Written by : Mark Austin 
 *  ======================================================================
 */

#include <stdio.h>

/* Declarations for (external) functions */

void testFunction1();
void testFunction2();

/* Declarations for global and file-level variables */

enum {freezing = 32};
float fTemperature = freezing;  /* Global float variable, which is
                                   visible throughout rest of this
                                   file, and also visible to other
                                   files. */
static int iValue1 = 10;        /* Scope of iValue1 restricted to
                                   this file, */

int main( void ) {
int iCount;

   /* [a] : Increment variables in external file. */

   printf("In main() : iValue1      = %d\n", iValue1 );
   printf("In main() : fTemperature = %f\n", fTemperature);
   testFunction1();
   printf("In main() : fTemperature = %f\n", fTemperature);

   /* [b] : Call testFunction2() three times. */

   for(iCount = 1; iCount <= 3; iCount++ )
       testFunction2();

   printf("In main() : Finished calling testFunction2() three times\n");
   printf("In main() : fTemperature = %f\n", fTemperature);
}

void testFunction1() {

   printf("In testFunction1() located in file 1 : Value1 = %d\n", iValue1);

}