Ternary operator turns a character into an integral

[dlangBugzillaToGithub]

Andrej Mitrovic (@AndrejMitrovic) reported this on 2014-05-06T19:22:40Z

Transferred from https://issues.dlang.org/show_bug.cgi?id=12711

CC List

Description

-----
import std.ascii;
import std.algorithm;
import std.stdio;

void main()
{
    writeln( "foo-bar-doo".map!(a => a.isAlphaNum ? a : '_') );
    writeln( "foo-bar-doo".map!(a => a.isAlphaNum ? a : cast(dchar)'_') );
}
-----

$ dmd -run test.d
> [102, 111, 111, 95, 98, 97, 114, 95, 100, 111, 111]
> foo_bar_doo

This is very ugly. I'm not sure whether it's a DMD bug or a Phobos bug though.

[dlangBugzillaToGithub]

bearophile_hugs commented on 2014-05-06T19:52:03Z

(In reply to Andrej Mitrovic from comment #0)

> This is very ugly. I'm not sure whether it's a DMD bug or a Phobos bug
> though.

It's an ugly dmd bug:

void main() {
    pragma(msg, typeof(true ? char('x')  : '_'));
    pragma(msg, typeof(true ? wchar('x') : '_'));
    pragma(msg, typeof(true ? dchar('x') : '_'));
}


Output:

char
int
uint


But perhaps I already reported this issue, please search it in Bugzilla.

[dlangBugzillaToGithub]

andrej.mitrovich (@AndrejMitrovic) commented on 2014-05-06T20:57:54Z

Seems like a dupe or another case of https://issues.dlang.org/show_bug.cgi?id=11732