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Home/ Questions/Q 7179797
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Editorial Team
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Editorial Team
Asked: May 28, 20262026-05-28T17:12:48+00:00 2026-05-28T17:12:48+00:00

In a C++ constructor do I have to allocate space for my instance fields

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In a C++ constructor do I have to allocate space for my instance fields (specifically I have two pointers as fields) or does calling “new” automatically allocate this space?

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  1. Editorial Team
    Editorial Team
    2026-05-28T17:12:49+00:00Added an answer on May 28, 2026 at 5:12 pm

    No. Instance fields of your classes are automatically allocated. If they are pointers, space is allocated for your pointers (4 bytes on 32 bit architectures, 8 bytes on 64 bit architectures). If you want your pointers to point to objects, you will need to either assign them or create objects for them to point to.

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