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nikitablack
nikitablack

Reputation: 4663

Initialize enum value with function call

Is there any way to initialize enum value like this:

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

Currently in Visual Studio I get this error:

error C2057: expected constant expression

And Visual Studio doesn't support constexpr

Upvotes: 3

Views: 463

Answers (1)

Laura Maftei
Laura Maftei

Reputation: 1863

The enumerator list within an enum declaration is defined as follows:

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

You may only use constant expressions.

Upvotes: 4

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