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The CICA Windows Explosion!
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The CICA Windows Explosion! - Disc 2.iso
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eckelt01.zip
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8
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STATFUN.CPP
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1995-02-23
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// File from page 333 in "Thinking in C++" by Bruce Eckel
//////////////////////////////////////////////////
// From the compressed package ECKELT01.ZIP 2/21/95
// Copyright (c) Bruce Eckel, 1995
// Source code file from the book "Thinking in C++",
// Prentice Hall, 1995, ISBN: 0-13-917709-4
// All rights reserved EXCEPT as allowed by the following
// statements: You may freely use this file for your own
// work, including modifications and distribution in
// executable form only. You may copy and distribute this
// file, as long as it is only distributed in the complete
// (compressed) package with the other files from this
// book and you do not remove this copyright and notice.
// You may not distribute modified versions of the source
// code in this package. This package may be freely placed
// on bulletin boards, internet nodes, shareware disks and
// product vendor disks. You may not use this file in
// printed media without the express permission of the
// author. Bruce Eckel makes no
// representation about the suitability of this software
// for any purpose. It is provided "as is" without express
// or implied warranty of any kind. The entire risk as to
// the quality and performance of the software is with
// you. Should the software prove defective, you assume
// the cost of all necessary servicing, repair, or
// correction.
// If you think you've found an error, please
// email all modified files with loudly commented changes
// to: eckel@aol.com (please use the same
// address for non-code errors found in the book).
//////////////////////////////////////////////////
//: STATFUN.CPP -- Static vars inside functions
#include <iostream.h>
#include "..\allege.h"
char onechar(const char* string = 0) {
static const char* s;
if(string) {
s = string;
return *s;
}
else
allege(s, "un-initialized s");
if(*s == '\0')
return 0;
return *s++;
}
char* a = "abcdefghijklmnopqrstuvwxyz";
main() {
// Onechar(); // causes allege()
onechar(a); // Initializes s to a
char c;
while((c = onechar()) != 0)
cout << c << endl;
}