On 01/13/2016 01:20 PM, H. S. Teoh via Digitalmars-d-learn wrote:
std.format.formattedWrite will do
writeln-formatting into a buffer (well, any output range, really) -- I'm
pretty sure it doesn't allocate, at least for the simplest cases like
converting an integer. So you should be able to do something like this:
auto data = [ 1, 2, 3, 4, 5 ];
char[] buf = ...;
formattedWrite(buf, "[%(%d, %)]", data);
And buf can be an Appender:
import std.stdio;
import std.format;
import std.array;
void main() {
auto data = [ 1, 2, 3, 4, 5 ];
auto buf = appender!string(); // Or appender!(char[]) if needed
formattedWrite(buf, "[%(%d, %)]", data);
assert(buf.data == "[1, 2, 3, 4, 5]");
}
Ali
