?? strmove.cpp
字號:
//: C18:Strmove.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
// ostrstream memory movement
#include <iostream>
#include <strstream>
using namespace std;
int main() {
ostrstream s;
s << "hi";
char* old = s.str(); // Freezes s
s.rdbuf()->freeze(0); // Unfreeze
for(int i = 0; i < 100; i++)
s << "howdy"; // Should force reallocation
cout << "old = " << (void*)old << endl;
cout << "new = " << (void*)s.str(); // Freezes
delete s.str(); // Release storage
} ///:~
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