Use operator new to allocate memory - C++ Operator

C++ examples for Operator:new

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Description

Use operator new to allocate memory

Demo Code

#include <iostream>
#include <cstring>            //for strlen
using namespace std;
int main()/*from  w w w.ja v a 2 s  .  co  m*/
{
   char* str = "Idle hands are the devil's workshop.";
   int len = strlen(str);     //get length of str
   char* ptr;                 //make a pointer to char
   ptr = new char[len+1];     //set aside memory: string + '\0'
   strcpy(ptr, str);          //copy str to new memory area ptr
   cout << "ptr=" << ptr << endl;  //show that ptr is now in str
   delete[] ptr;              //release ptr's memory
   return 0;
}

Result


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