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Alias `std.traits.CommonType`

Get the type that all types can be implicitly converted to. Useful e.g. in figuring out an array type from a bunch of initializing values. Returns void if passed an empty list, or if the types have no common type.


						
				alias CommonType(T...)
				 = typeof(T[0].init);

Example

alias X = CommonType!(int, long, short);
assert(is(X == long));
alias Y = CommonType!(int, char[], short);
assert(is(Y == void));

Example

static assert(is(CommonType!(3) == int));
static assert(is(CommonType!(double, 4, float) == double));
static assert(is(CommonType!(string, char[]) == const(char)[]));
static assert(is(CommonType!(3, 3U) == uint));
static assert(is(CommonType!(double, int) == double));

Authors

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

License

Boost License 1.0.

API Documentation

Alias std.traits.CommonType

Example

Example

Authors

License

Alias `std.traits.CommonType`