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Function std.range.primitives.moveFront
Moves the front of r
out and returns it. Leaves r
in a
destroyable state that does not allocate any resources (usually equal
to its
value).
Example
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
Authors
Andrei Alexandrescu, David Simcha, and Jonathan M Davis. Credit for some of the ideas in building this module goes to Leonardo Maffi.
License
Copyright © 1999-2022 by the D Language Foundation | Page generated by ddox.