CODEWITHSUNDEEP
c++classenumsbit-fields
user1802623
user1802623

Reputation: 21

Compilation errors when using explicitly-typed enum classes in bitfields (gcc C++0x/C++11)

I've been happily compiling my code with GCC without issue for the past three months until I rebuilt my cross-compiler, which was when I found myself getting the message "error: bit-field '...' with non-integral type".

An example of an offending enum is below:

typedef unsigned char byte;

enum class opStatus : byte
{
    /* Process has yet to begin execution */
    Ready,
    /* Process can resume execution */
    Started,
    /* Process has completed */
    Finished,
    /* Process is handling shutdown */
    Finishing,
};

struct // Example usage
{
    opStatus Status : 2;
};

Why is this happening?

Upvotes: 2

Views: 1188

Answers (1)

Raja
Raja

Reputation: 3106

Make the bitwidth 8. Its a byte after all.

Once I did that (and added a name for the struct), 

g++ -std=c++11

didn't give me any warning or error.

Upvotes: 1

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