C++ Notes: Dynamic Allocation of Arrays - The Diigo Meta page

• 09 Oct 16
  

  Wai Keung Hui

  c++ programming tutorial associate array pointer list dictionary

• 17 Aug 10
  

  D C

  int* a = NULL; // Pointer to int, initialize to nothing.
  int n; // Size needed for array
  cin >> n; // Read in the size
  a = new int[n]; // Allocate n ints and save ptr in a.
  for (int i=0; i<n; i++) {
  a[i] = 0; // Initialize all e

  c++ memory tutorial allocation new array dynamic

• 07 Jun 10
  

  bogacaslan

  software developer c c++ programming tutorial array dynamic memory allocation

• 01 Aug 09
  

  Alessandro Faria

  C++ Matriz

• 08 Jul 09
  

  Donghai Ma

  c++ programming memory tutorial dynamic allocation array

• 06 Jun 09
  

  gowthad d

  dynamic array allocation

  allocation arrays c++

  • Allocate an array with code>new

     

    When the desired size of an array is known, allocate memory for it with the new operator and save the address of that memory in the pointer. Remember: Pointers may be subscripted just as arrays are. The example below reads in a number and allocates that size array. 

      

    int* a = NULL;   // Pointer to int, initialize to nothing. int n;           // Size needed for array cin >> n;        // Read in the size a = new int[n];  // Allocate n ints and save ptr in a. for (int i=0; i<n; i++) {     a[i] = 0;    // Initialize all elements to zero. } . . .  // Use a as a normal array delete [] a;  // When done, free memory pointed to by a. a = NULL;     // Clear a to prevent using invalid memory reference.
• 25 Mar 09
  

  sergiomar73

  c++ punteros

• 22 May 08
  

  Elie Zananiri

  c++ code for:smallfly

• 23 Apr 08
  

  Toto RoToto

  dynamic array allocation

  allocation arrays c++

  • Allocate an array with code>new

     

    When the desired size of an array is known, allocate memory for it with the new operator and save the address of that memory in the pointer. Remember: Pointers may be subscripted just as arrays are. The example below reads in a number and allocates that size array. 

      

    int* a = NULL;   // Pointer to int, initialize to nothing. int n;           // Size needed for array cin >> n;        // Read in the size a = new int[n];  // Allocate n ints and save ptr in a. for (int i=0; i<n; i++) {     a[i] = 0;    // Initialize all elements to zero. } . . .  // Use a as a normal array delete [] a;  // When done, free memory pointed to by a. a = NULL;     // Clear a to prevent using invalid memory reference.
• 08 Feb 08
  

  Lars H

  (tags: cpp)

  cpp

• 09 Oct 06
  

  Alvaro Colunga

  visualc

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