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Handling Insufficient Memory Conditions

Testing for failed memory allocation can be done with code such as the following:

// insufficient_memory_conditions.cpp
// compile with: /EHsc
#include <iostream>
using namespace std;
#define BIG_NUMBER 100000000
int main() {
   int *pI = new int[BIG_NUMBER];
   if( pI == 0x0 ) {
      cout << "Insufficient memory" << endl;
      return -1;

There is another ways to handle failed memory allocation requests: write a custom recovery routine to handle such a failure, then register your function by calling the _set_new_handler run-time function.