qLowerBound() returns an iterator pointing to the first occurrence of the search element. : qLowerBound « Qt « C++

Home
C++
1.Bitset
2.Class
3.Console
4.Data Structure
5.Data Type
6.Deque
7.Development
8.File
9.Function
10.Generic
11.Language
12.List
13.Map Multimap
14.Overload
15.Pointer
16.Qt
17.Queue Stack
18.Set Multiset
19.STL Algorithms Binary search
20.STL Algorithms Heap
21.STL Algorithms Helper
22.STL Algorithms Iterator
23.STL Algorithms Merge
24.STL Algorithms Min Max
25.STL Algorithms Modifying sequence operations
26.STL Algorithms Non modifying sequence operations
27.STL Algorithms Sorting
28.STL Basics
29.String
30.Valarray
31.Vector
C / ANSI-C
C Tutorial
C++ Tutorial
Visual C++ .NET
C++ » Qt » qLowerBoundScreenshots 
qLowerBound() returns an iterator pointing to the first occurrence of the search element.
  

#include <QDebug>
#include <QList>
#include <QVector>

int main()
{
  QList<int> list;
  list << << << << << << 8;

  QList<int>::iterator it;
  it = qLowerBound(list.begin(), list.end()5);
  list.insert(it, 5);
  qDebug() << list; // output: ( 3, 3, 5, 6, 6, 6, 8 )

  it = qLowerBound(list.begin(), list.end()12);
  list.insert(it, 12);
  qDebug() << list; // output: ( 3, 3, 5, 6, 6, 6, 8, 12 )

  it = qLowerBound(list.begin(), list.end()12);
  list.insert(it, 12);
  qDebug() << list; // output: ( 3, 3, 5, 6, 6, 6, 8, 12, 12 )

  QVector<int> vect;
  vect << << << << << << 8;
  QVector<int>::iterator begin6 =
        qLowerBound(vect.begin(), vect.end()6);
  QVector<int>::iterator end6 =
        qUpperBound(vect.begin(), vect.end()6);
  QVector<int> vect2(end6-begin6);
  qCopy(begin6, end6, vect2.begin());
  qDebug() << vect2; // output: ( 6, 6, 6 )

  qCount(vect.begin(), vect.end()6, count6);
  qDebug() << count6; // output: 3
  return 0;
}

   
    
  
Related examples in the same category
www.java2java.com | Contact Us
Copyright 2009 - 12 Demo Source and Support. All rights reserved.
All other trademarks are property of their respective owners.