[Issue 15236] New: std.range.chain cannot chain a std.range.repeat string
via Digitalmars-d-bugs
digitalmars-d-bugs at puremagic.com
Thu Oct 22 11:15:17 PDT 2015
https://issues.dlang.org/show_bug.cgi?id=15236
Issue ID: 15236
Summary: std.range.chain cannot chain a std.range.repeat string
Product: D
Version: D2
Hardware: x86
OS: Mac OS X
Status: NEW
Severity: normal
Priority: P1
Component: phobos
Assignee: nobody at puremagic.com
Reporter: jack at jackstouffer.com
This seems to be a problem in the way the template constraint for chain finds
the element types for all of the ranges. It thinks that the element type for
Take!(Repeat!string) is string, so it comes up with CommonType!(string, dchar)
which is void.
-----------------------
import std.range;
void main()
{
string a = "abc";
string b = "xyz";
chain(repeat(a, 2), b);
}
test.d(8): Error: template std.range.chain cannot deduce function from argument
types !()(Take!(Repeat!string), string)
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