digitalmars.D - Re: Explicitly Instantiated Function Template won't work as Array
- HOSOKAWA Kenchi (11/27) Oct 27 2008 std.algorithm.reverse is a Function template.
- Denis Koroskin (4/31) Oct 27 2008 Oh, that's easy: array should be the first parameter in a function, it
Moritz Warning Wrote:On Sat, 25 Oct 2008 02:19:05 -0400, HOSOKAWA Kenchi wrote:std.algorithm.reverse is a Function template. definition of std.algorithm.reverse is : void reverse(alias iterSwap = .iterSwap, Range)(Range r); thus it is a template, according to "Function Templates" in http://www.digitalmars.com/d/2.0/template.html please note these codes are working (and failing) in dmd 2.020 int[] arr = [ 1, 2, 3 ]; reverse!(std.algorithm.iterSwap, int[])(arr); // works. arr.reverse!(std.algorithm.iterSwap, int[]); // fails assert(arr == [ 3, 2, 1 ]);import std.algorithm; [0,1,2,3].reverse!(int[]); // fails [0,1,2,3].reverse; // works Please let me know the former expression fails due to the language limitation or not. thanks,http://www.digitalmars.com/d/2.0/phobos/std_algorithm.html#reverse reverse is no template.
Oct 27 2008
On Mon, 27 Oct 2008 11:47:39 +0300, HOSOKAWA Kenchi <hskwk inter7.jp> wrote:Moritz Warning Wrote:Oh, that's easy: array should be the first parameter in a function, it won't work as a pseudo-member function otherwise.On Sat, 25 Oct 2008 02:19:05 -0400, HOSOKAWA Kenchi wrote:std.algorithm.reverse is a Function template. definition of std.algorithm.reverse is : void reverse(alias iterSwap = .iterSwap, Range)(Range r); thus it is a template, according to "Function Templates" in http://www.digitalmars.com/d/2.0/template.html please note these codes are working (and failing) in dmd 2.020 int[] arr = [ 1, 2, 3 ]; reverse!(std.algorithm.iterSwap, int[])(arr); // works. arr.reverse!(std.algorithm.iterSwap, int[]); // fails assert(arr == [ 3, 2, 1 ]);import std.algorithm; [0,1,2,3].reverse!(int[]); // fails [0,1,2,3].reverse; // works Please let me know the former expression fails due to the language limitation or not. thanks,http://www.digitalmars.com/d/2.0/phobos/std_algorithm.html#reverse reverse is no template.
Oct 27 2008