//
//  playExtern.h
//  
//
//  Created by Ying Li on 2/23/20.
//

#ifndef playExtern_h
#define playExtern_h

#include <stdio.h>

extern int gblA; // global scope. (This is a declaration)
extern int glbB;

//int gblA; // not an appropriate way
// int gblA = 5; // doesn't compile (this is a definition)

void printExternVal ();

#endif /* playExtern_h */