View source code
Display the source code in std/range/primitives.d from which this page was generated on github.
Report a bug
If you spot a problem with this page, click here to create a Bugzilla issue.
Improve this page
Quickly fork, edit online, and submit a pull request for this page. Requires a signed-in GitHub account. This works well for small changes. If you'd like to make larger changes you may want to consider using local clone.

Function std.range.primitives.moveFront

Moves the front of r out and returns it. Leaves r.front in a destroyable state that does not allocate any resources (usually equal to its .init value).

ElementType!R moveFront(R) (
  R r


auto a = [ 1, 2, 3 ];
writeln(moveFront(a)); // 1
writeln(a.length); // 3

// define a perfunctory input range
struct InputRange
    enum bool empty = false;
    enum int front = 7;
    void popFront() {}
    int moveFront() { return 43; }
InputRange r;
// calls r.moveFront
writeln(moveFront(r)); // 43


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.