enum foo : const unsigned int
{
F,
S,
T
};
void func()
{
foo p;
p = F;
}
The above compiles so the underlying type is not a const type?
The const qualifier is ignored in the specification of enum-base; which just expects an integral type to be used as the underlying type of the enumeration type, specifying const (or volatile) doesn't make much sense.
(emphasis mine)
colon (:), followed by a type-specifier-seq that names an integral type (if it is cv-qualified, qualifications are ignored) that will serve as the fixed underlying type for this enumeration type
From the standard, [dcl.enum]/2:
(emphasis mine)
The type-specifier-seq of an enum-base shall name an integral type; any cv-qualification is ignored.
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