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Enum member std.traits.isTypeTuple

Check whether the tuple T is a type tuple. A type tuple only contains types.

enum isTypeTuple(T...) = () { static foreach (U; T) { static if (!is(U)) { if (__ctfe) return false; } } return true; } ();

See Also



static assert(isTypeTuple!(int, float, string));
static assert(!isTypeTuple!(1, 2.0, "a"));
static assert(!isTypeTuple!(1, double, string));


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


Boost License 1.0.