https://issues.dlang.org/show_bug.cgi?id=18910
Issue ID: 18910
Summary: Non-compile-time-constant parameter default values not
respected when passed as alias to a template function
(with some indirection)
Product: D
Version: D2
Hardware: x86_64
OS: Linux
Status: NEW
Severity: normal
Priority: P1
Component: dmd
Assignee: [email protected]
Reporter: [email protected]
Test case:
---
import std.stdio;
int protoss(alias func)()
{
return func(4);
}
int zerg(immutable int q)
{
int getSecondArgument(int a, int b)
{
writefln("getSecondArgument of %s %s", a, b);
return b;
}
return protoss!((int a, int b = q) => getSecondArgument(a, b))();
}
void main(string[] args)
{
zerg(10).writeln;
}
---
Expected output:
getSecondArgument of 4 10
10
Actual output:
getSecondArgument of 4 0
0
Simplified cases of this do result in an error message, so it's probably just a
case of extending the current error check, or reordering an optimization or
something.
--
