?? smallstring2.cpp
字號:
//: C17:SmallString2.cpp
// From Thinking in C++, 2nd Edition
// Available at http://www.BruceEckel.com
// (c) Bruce Eckel 1999
// Copyright notice in Copyright.txt
#include <string>
using namespace std;
int main() {
string s1
("What is the sound of one clam napping?");
string s2
("Anything worth doing is worth overdoing.");
string s3("I saw Elvis in a UFO.");
// Copy the first 8 chars
string s4(s1, 0, 8);
// Copy 6 chars from the middle of the source
string s5(s2, 15, 6);
// Copy from middle to end
string s6(s3, 6, 15);
// Copy all sorts of stuff
string quoteMe = s4 + "that" +
// substr() copies 10 chars at element 20
s1.substr(20, 10) + s5 +
// substr() copies up to either 100 char
// or eos starting at element 5
"with" + s3.substr(5, 100) +
// OK to copy a single char this way
s1.substr(37, 1);
} ///:~
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