On Thursday, 31 August 2017 at 18:26:33 UTC, Sergei Degtiarev
wrote:
Hi,
I tried to create a simple range concatenating several files,
something like this:
File[] files;
....
foreach(ln; joiner(files.map!(a => a.byLine)))
writeln(ln);
and I see every first line of each file is missing.
However, when I do same thing with separator:
char[][] separator=["**** new file ****".dup];
foreach(ln; joiner(files.map!(a => a.byLine), separator))
writeln(ln);
everything works fine, both separator and first lines are
printed.
It looks pretty much as a bug for me, but I'm not sure I use it
correctly.
Doesn't byLine() reuse a buffer, joiner probably caches the first
line and calls .popFront()
