On Saturday, 16 November 2013 at 22:57:35 UTC, Namespace wrote:
Hi.
Is it possible to write something like that?
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void error(Args...)(string msg, Args args, string file =
__FILE__, size_t line = __LINE__) { ... }
----
?
Currently not, but how could it be done? I wont like to write:
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error(format(msg, args));
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Thanks in advance. :)
It is always surprising how quickly one has found its own
solution, after you have posted here... :)
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import std.stdio;
import std.string : format;
template error(string file = __FILE__, size_t line = __LINE__,
Args...) {
void error(string msg, Args args) {
static if (args.length != 0)
msg = .format(msg, args);
writeln(.format(msg ~ ". In file %s on line %d.", file, line));
}
}
void main()
{
error("hallo");
error("Hallo %s.", "du da");
}
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