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Asked: 2026-05-14T16:41:30+00:00

enum ABC{ A, B, C=5, D, E }; Are D and E guaranteed to

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enum ABC{
 A,
 B,
 C=5,
 D,
 E
};

Are D and E guaranteed to be greater than 5 ?
Are A and B guaranteed to be smaller than 5 (if possible)?

edit: What would happen if i say C=1

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1 Answer

  1. Editorial Team

    It is guaranteed by C++ Standard 7.2/1:

    The identifiers in an enumerator-list are declared as constants, and can appear wherever constants are
    required. An enumerator-definition with = gives the associated enumerator the value indicated by the
    constant-expression. The constant-expression shall be of integral or enumeration type. If the first
    enumerator has no initializer, the value of the corresponding constant is zero. An enumerator-definition
    without an initializer gives the enumerator the value obtained by increasing the value of the previous
    enumerator by one.

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