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Function std.range.primitives.front

Implements the range interface primitive front for built-in arrays. Due to the fact that nonmember functions can be called with the first argument using the dot notation, array.front is equivalent to front(array). For narrow strings, front automatically returns the first code point as a dchar.

ref inout(T) front(T) (
  scope return inout(T)[] a
) pure nothrow @nogc @property @safe
if (!isAutodecodableString!(T[]) && !is(T[] == void[]));

dchar front(T) (
  scope const(T)[] a
) pure @property @safe
if (isAutodecodableString!(T[]));


int[] a = [ 1, 2, 3 ];
writeln(a.front); // 1


Andrei Alexandrescu, David Simcha, and Jonathan M Davis. Credit for some of the ideas in building this module goes to Leonardo Maffi.


Boost License 1.0.