Initialize enum value when calling function

Question

Initialize enum value when calling function

Is it possible to initialize an enum value like this:

enum Test
{
    X = function("X")
};

I am currently getting this error in Visual Studio:

error C2057: Constant expression expected

And Visual Studio doesn't support constexpr

+3

c ++ enums

nikitablack 13 oct. 14 at 14:24

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1 answer

Laura maftei · Accepted Answer · 2014-10-13T14:41:25+0000

The list of enums in an enumeration declaration is defined as follows:

list-list is a comma-separated list of enumeration definitions, each of which is either just an identifier that becomes the name of the enumerator, or an identifier with an initializer: identifier = constexpr

You can only use constant expressions.

Initialize enum value when calling function

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