On 4/24/2011 5:22 PM, Justin Hanekom wrote:
Hi all,
I have what should be an *extremely* simple question that Im banging my head
against: how to use
sprintf to format something to a string.
I have tried:
import std.stdio;
...
auto buffer = new char[12];
auto chars_written = sprintf(cast(char *) buffer, "%d", 12345);
writeln(chars_written);
and various other ways of getting the buffer into sprintf, but no matter what I
do the program seems to
die when sprintf is called.
What I'm ultimately trying to do here is format a number with thousands
separated by commas.
Any idea?
Thanks, Justin
sprintf is a C function. The string you passed needs to be
zero-terminated. Since it's not, sprintf probably keeps trying to write
more stuff until it segfaults, because it never finds the zero
terminator. See std.string.toStringz
(http://www.digitalmars.com/d/2.0/phobos/std_string.html#toStringz).
