On Monday, 9 July 2018 at 17:26:30 UTC, vino.B wrote:
Request Help:
void process(alias coRoutine, T...)(Array!string Dirlst, T
params)
{
ReturnType!coRoutine rData; ///// This line is not
working
alias scRType = typeof(coRoutine(string.init, T.init));
auto PFresult = taskPool.workerLocalStorage!scRType();
foreach (string FFs; parallel(Dirlst[],1)) { PFresult.get
~= coRoutine(FFs, params); }
foreach(i; PFresult.toRange) { rData ~= i[][]; }
}
Error:
test.d(206): Error: template instance
`std.traits.ReturnType!(coAgedDirClean)` does not match
template declaration ReturnType(func...) if (func.length == 1
&& isCallable!func)
Yeah... for ReturnType to work, you need a function, but you have
only a template.
The easy solution is to execute the template and to ask the
result for its type:
´´´
void main()
{
process!fun();
}
void process(alias coRoutine, T...)(T params)
{
auto res = coRoutine(params);
pragma(msg, typeof(res));
}
auto fun(T...)(T params)
{
return 42;
}
´´´
If you need it in advance... It is a little bit longer. There was
a place, where I used this once...
See
https://run.dlang.io/is/Xy6Xf4
However, I wonder why you need this, especially as your process
is void. Why not just using auto for results of the coroutines?
