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Enum member `std.traits.isBoolean`

Detect whether T is a built-in boolean type.


						
				enum isBoolean(T)
				 = __traits(isUnsigned, T) && is(T : bool);

Example

static assert( isBoolean!bool);
enum EB : bool { a = true }
static assert( isBoolean!EB);

struct SubTypeOfBool
{
    bool val;
    alias val this;
}
static assert(!isBoolean!(SubTypeOfBool));

Authors

Walter Bright, Tomasz Stachowiak (isExpressions), Andrei Alexandrescu, Shin Fujishiro, Robert Clipsham, David Nadlinger, Kenji Hara, Shoichi Kato

License

Boost License 1.0.