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Asked: 2026-05-27T03:49:03+00:00

I know a contiguous block of memory is allocated for an array. My first

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I know a contiguous block of memory is allocated for an array.

My first question is when the array element is an object rather than a built-in type, what gets stored in the contiguous memory reserved for the array? Pointer for the object or the actual data for the object? My guess is pointers are stored in the array and the actual objects are stored randomly in the heap. Am I correct?

My second question is now we want to reserve a specified memory(e.g., shared memory) for an array of objects. What is the best way to achieve this? Should I serialise the actual objects in the specified memory one by one and use relative pointers(e.g., indices) to access each of them?

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  1. Editorial Team

    Not at all correct. An array T[N] contains N elements of type T, directly stored in contiguous memory. The array occupies N * sizeof(T) bytes of memory.

    Conversely, to answer your second question, any run of N * sizeof(T) bytes of memory can be used to hold N elements of type T (subject to some alignment constraints perhaps).

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