/*
 *  =====================================================================
 *  Scope : Demonstrate Scope of Variables in a 1 file C Program.
 *
 *  Copyright (C) 1994-96 by Mark Austin and David Mazzoni.
 *                                                                     
 *  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 : M. Austin and D. Mazzoni                    January 1994
 *  =====================================================================
 */

#include <stdio.h>

enum {freezing = 32};
float fTemperature = freezing;  /* Global float variable, which is visible 
                                   throughout rest of this file,  and also   
                                   visible to other files */

int main( void ) {
void TestFunction1();
void TestFunction2();

   printf("In main() : fTemperature = %f\n", fTemperature);
   TestFunction1();
   TestFunction2();
   printf("In main() : fTemperature = %f\n", fTemperature);
}

/* 
 *  ----------------------- 
 *  Test functions 1 and 2
 *  ----------------------- 
 */ 

int iValue1 = 5;

void TestFunction1() {
int iValue2 = 2;

   printf("In TestTunction1() : iValue1      = %d\n", iValue1);
   printf("In TestTunction1() : iValue2      = %d\n", iValue2);

   fTemperature += 32.0;
}

void TestFunction2() {
int iValue1 = 2;

   printf("In TestTunction2() : iValue1      = %d\n", iValue1);
}