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- // File from page 215 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).
- //////////////////////////////////////////////////
-
- //: STRFILE.CPP -- Stream I/O with files
- // The difference between get() & getline()
- #include <fstream.h> // Includes iostream.h
- #include <assert.h>
- #define SZ 100 // Buffer size
-
- main() {
- char buf[SZ];
- {
- ifstream in("strfile.cpp"); // Read
- assert(in); // Ensure successful open
- ofstream out("strfile.out"); // Write
- assert(out);
- int i = 1; // Line counter
-
- // A less-convenient approach for line input:
- while(in.get(buf, SZ)) { // Leaves \n in input
- in.get(); // Throw away next character (\n)
- cout << buf << endl; // Must add \n
- // File output just like standard I/O:
- out << i++ << ": " << buf << endl;
- }
- } // Destructors close in & out
-
- ifstream in("strfile.out");
- assert(in);
- // More convenient line input:
- while(in.getline(buf, SZ)) { // Removes \n
- char* cp = buf;
- while(*cp != ':')
- cp++;
- cp += 2; // Past ": "
- cout << cp << endl; // Must still add \n
- }
- }
-