digitalmars.D.learn - return type of std.algorithm.mutation.reverse changed for good?
- biocyberman (11/11) May 24 2018 I am testing with DMD 2.078.2 locally. This tiny snippet works on
- rikki cattermole (2/17) May 24 2018 https://docarchives.dlang.io/v2.078.0/phobos/std_algorithm_mutation.html...
- Steven Schveighoffer (37/56) May 24 2018 This doesn't quite tell the whole story.
- biocyberman (16/73) May 24 2018 @Rikki and Steve: Many thanks for the good tips. I upgraded to
I am testing with DMD 2.078.2 locally. This tiny snippet works on dlang's online editor: https://run.dlang.io/is/nb4IV4 But it does not work on my local dmd. import std.algorithm.mutation; import std.stdio; char[] arr = "hello\U00010143\u0100\U00010143".dup; writeln(arr.reverse); Error: template std.stdio.writeln cannot deduce function from argument types !()(void) The document says reverse returns a range: https://dlang.org/phobos/std_algorithm_mutation.html#reverse
May 24 2018
On 25/05/2018 12:06 AM, biocyberman wrote:I am testing with DMD 2.078.2 locally. This tiny snippet works on dlang's online editor: https://run.dlang.io/is/nb4IV4 But it does not work on my local dmd. import std.algorithm.mutation; import std.stdio; char[] arr = "hello\U00010143\u0100\U00010143".dup; writeln(arr.reverse); Error: template std.stdio.writeln cannot deduce function from argument types !()(void) The document says reverse returns a range: https://dlang.org/phobos/std_algorithm_mutation.html#reversehttps://docarchives.dlang.io/v2.078.0/phobos/std_algorithm_mutation.html#reverse
May 24 2018
On 5/24/18 8:08 AM, rikki cattermole wrote:On 25/05/2018 12:06 AM, biocyberman wrote:This doesn't quite tell the whole story. An array used to have a .reverse property that the compiler implemented, which returned the array after reversing it. So in history, this actually worked without std.algorithm. You get a nice history of what happens using "all dmd versions" on run.dlang.io. If you remove the "mutation" part from the import, you get: Up to 2.071.2: Success with output: ๐ ฤ๐ olleh 2.072.2 to 2.074.1: Success with output: ----- onlineapp.d(6): Deprecation: use std.algorithm.reverse instead of .reverse property ๐ ฤ๐ olleh ----- 2.075.1: Failure with output: ----- onlineapp.d(6): Error: template std.stdio.writeln cannot deduce function from argument types !()(void), candidates are: /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/stdio.d(3553): std.stdio.writeln(T...)(T args) ----- 2.076.1 to 2.077.1: Failure with output: ----- onlineapp.d(6): Error: template std.stdio.writeln cannot deduce function from argument types !()(void), candidates are: /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/stdio.d(3571): std.stdio.writeln(T...)(T args) ----- 2.078.1: Failure with output: ----- onlineapp.d(6): Error: template std.stdio.writeln cannot deduce function from argument types !()(void), candidates are: /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/stdio.d(3657): std.stdio.writeln(T...)(T args) ----- Since 2.079.0: Success with output: ๐ ฤ๐ olleh -SteveI am testing with DMD 2.078.2 locally. This tiny snippet works on dlang's online editor: https://run.dlang.io/is/nb4IV4 But it does not work on my local dmd. import std.algorithm.mutation; import std.stdio; char[] arr = "hello\U00010143\u0100\U00010143".dup; writeln(arr.reverse); Error: template std.stdio.writeln cannot deduce function from argument types !()(void) The document says reverse returns a range: https://dlang.org/phobos/std_algorithm_mutation.html#reversehttps://docarchives.dlang.io/v2.078.0/phobos/std_algorithm_m tation.html#reverse
May 24 2018
On Thursday, 24 May 2018 at 12:34:38 UTC, Steven Schveighoffer wrote:On 5/24/18 8:08 AM, rikki cattermole wrote:Rikki and Steve: Many thanks for the good tips. I upgraded to dmd.2.080.0 now, but the server seems to be very slow. It's another story anyway. % ./install.sh dmd !9767 Downloading and unpacking http://downloads.dlang.org/releases/2.x/2.080.0/dmd.2.080.0.linux.tar.xz curl: (28) Operation too slow. Less than 1024 bytes/sec transferred the last 30 seconds Failed to download 'http://downloads.dlang.org/releases/2.x/2.080.0/dmd.2.080.0.linux.tar.xz'On 25/05/2018 12:06 AM, biocyberman wrote:This doesn't quite tell the whole story. An array used to have a .reverse property that the compiler implemented, which returned the array after reversing it. So in history, this actually worked without std.algorithm. You get a nice history of what happens using "all dmd versions" on run.dlang.io. If you remove the "mutation" part from the import, you get: Up to 2.071.2: Success with output: ๐ ฤ๐ olleh 2.072.2 to 2.074.1: Success with output: ----- onlineapp.d(6): Deprecation: use std.algorithm.reverse instead of .reverse property ๐ ฤ๐ olleh ----- 2.075.1: Failure with output: ----- onlineapp.d(6): Error: template std.stdio.writeln cannot deduce function from argument types !()(void), candidates are: /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/stdio.d(3553): std.stdio.writeln(T...)(T args) ----- 2.076.1 to 2.077.1: Failure with output: ----- onlineapp.d(6): Error: template std.stdio.writeln cannot deduce function from argument types !()(void), candidates are: /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/stdio.d(3571): std.stdio.writeln(T...)(T args) ----- 2.078.1: Failure with output: ----- onlineapp.d(6): Error: template std.stdio.writeln cannot deduce function from argument types !()(void), candidates are: /path/to/dmd.linux/dmd2/linux/bin64/../../src/phobos/std/stdio.d(3657): std.stdio.writeln(T...)(T args) ----- Since 2.079.0: Success with output: ๐ ฤ๐ olleh -SteveI am testing with DMD 2.078.2 locally. This tiny snippet works on dlang's online editor: https://run.dlang.io/is/nb4IV4 But it does not work on my local dmd. import std.algorithm.mutation; import std.stdio; char[] arr = "hello\U00010143\u0100\U00010143".dup; writeln(arr.reverse); Error: template std.stdio.writeln cannot deduce function from argument types !()(void) The document says reverse returns a range: https://dlang.org/phobos/std_algorithm_mutation.html#reversehttps://docarchives.dlang.io/v2.078.0/phobos/std_algorithm_mutation.html#reverse
May 24 2018