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Alias std.traits.KeyType

Get the Key type of an Associative Array.

Declaration

alias KeyType(V, K) = K;

Example

import std.traits;
alias Hash = int[string];
static assert(is(KeyType!Hash == string));
static assert(is(ValueType!Hash == int));
KeyType!Hash str = "a"; // str is declared as string
ValueType!Hash num = 1; // num is declared as int

Authors

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

License

Boost License 1.0.

Comments