Set the capacity of a string to 128. : string size « string « C++ Tutorial

Home
C++ Tutorial
1.Language Basics
2.Data Types
3.Operators statements
4.Array
5.Development
6.Exceptions
7.Function
8.Structure
9.Class
10.Operator Overloading
11.Pointer
12.File Stream
13.template
14.STL Introduction
15.string
16.vector
17.list
18.bitset
19.set multiset
20.valarray
21.queue stack
22.deque
23.map multimap
24.STL Algorithms Modifying sequence operations
25.STL Algorithms Non modifying sequence operations
26.STL Algorithms Binary search
27.STL Algorithms Sorting
28.STL Algorithms Merge
29.STL Algorithms Min Max
30.STL Algorithms Iterator
31.STL Algorithms Heap
32.STL Algorithms Helper
C / ANSI-C
C Tutorial
C++
Visual C++ .NET
C++ Tutorial » string » string size 
15.21.7.Set the capacity of a string to 128.
#include <iostream>
#include <string>

using namespace std;

int main()
{
  string str1("A");
  string str2("B");
  string str3("G");
  string str4;

  cout << "  str1: " << str1 << endl;
  cout << "  str2: " << str2 << endl;
  cout << "  str3: " << str3 << "\n\n";

  // Set the capacity of str4 to 128.
  cout << "Setting the capacity of str4 to 128\n";
  str4.reserve(128);
  cout << "Capacity of str4 is now: " << str4.capacity() << "\n\n";

  return 0;
}
15.21.string size
15.21.1.Use string.length() to check the string's size
15.21.2.Display the size of a string
15.21.3.string.size()
15.21.4.string size grows
15.21.5.Display the maximum string length
15.21.6.Display the capacity of a string
15.21.7.Set the capacity of a string to 128.
15.21.8.string.size(), string.length, string.capacity(), string.max_size()
15.21.9.functions related to size and capacity
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.