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Editorial Team
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Asked: 2026-05-14T07:32:13+00:00

I have the following piece of snippet Class Sample { Obj_Class1 o1; Obj_Class2 o2;};

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I have the following piece of snippet

Class Sample
{ Obj_Class1 o1;
  Obj_Class2 o2;};

But the size of Obj_Class1 and Obj_Class2 is huge so that the compiler shows a warning “Consider moving some space to heap”. I was asked to replace Obj_Class1 o1 with Obj_Class1* o1 = new Obj_Class1(); But I feel that there is no use of making this change as heap allocation will also fail if stack allocation fails. Am I correct? Or does it make sense to make this change ( other than suppressing the compiler warning ).

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1 Answer

  1. Editorial Team

    It is very typical that the stack is smaller than the heap. They use different memory locations. The stack is typically about a megabyte in size (you can change it, but be careful) and is allocated per thread. The heap can consume gigabytes if needed.

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