• Andrea Fontana (1/1) Apr 11 2012 How can I redirect stdout / stderr to file (from D not shell)?
• Andrea Fontana (6/7) Apr 11 2012 Self-reply:
• Stefan (5/13) Apr 11 2012 Careful: D strings are not zero-terminated. args[4].toStringz()
• Andrea Fontana (2/19) Apr 12 2012 Good point Stefan!
• Philip Stuckey (5/27) Apr 11 2015 why not:
• FreeSlave (3/7) Apr 12 2015 It just replaces the object, not redirects output. E.g. if you
• Rikki Cattermole (3/10) Apr 12 2015 You will need to use writefln instead of printf. As printf uses the

"Andrea Fontana" <nospam example.com> writes:

How can I redirect stdout / stderr to file (from D not shell)?

"Andrea Fontana" <nospam example.com> writes:

On Wednesday, 11 April 2012 at 12:46:30 UTC, Andrea Fontana wrote:
 How can I redirect stdout / stderr to file (from D not shell)?

Self-reply:

It works using std.c way:

import std.cstream;
std.c.stdio.freopen(args[4].ptr, "w+", dout.file);
std.c.stdio.freopen(args[4].ptr, "w+", derr.file);

"Stefan" <stefan schuerger.com> writes:

On Wednesday, 11 April 2012 at 13:00:45 UTC, Andrea Fontana wrote:
 On Wednesday, 11 April 2012 at 12:46:30 UTC, Andrea Fontana 
 wrote:
 How can I redirect stdout / stderr to file (from D not shell)?

 Self-reply:

 It works using std.c way:

 import std.cstream;
 std.c.stdio.freopen(args[4].ptr, "w+", dout.file);
 std.c.stdio.freopen(args[4].ptr, "w+", derr.file);

Careful: D strings are not zero-terminated. args[4].toStringz() 
is the safer choice.

Cheers,
Stefan

"Andrea Fontana" <nospam example.com> writes:

On Wednesday, 11 April 2012 at 15:25:56 UTC, Stefan wrote:
 On Wednesday, 11 April 2012 at 13:00:45 UTC, Andrea Fontana 
 wrote:
 On Wednesday, 11 April 2012 at 12:46:30 UTC, Andrea Fontana 
 wrote:
 How can I redirect stdout / stderr to file (from D not shell)?

 Self-reply:

 It works using std.c way:

 import std.cstream;
 std.c.stdio.freopen(args[4].ptr, "w+", dout.file);
 std.c.stdio.freopen(args[4].ptr, "w+", derr.file);

 Careful: D strings are not zero-terminated. args[4].toStringz() 
 is the safer choice.

 Cheers,
 Stefan

Good point Stefan!

"Philip Stuckey" <pstuc002.public gmail.com> writes:

On Thursday, 12 April 2012 at 08:11:58 UTC, Andrea Fontana wrote:
 On Wednesday, 11 April 2012 at 15:25:56 UTC, Stefan wrote:
 On Wednesday, 11 April 2012 at 13:00:45 UTC, Andrea Fontana 
 wrote:
 On Wednesday, 11 April 2012 at 12:46:30 UTC, Andrea Fontana 
 wrote:
 How can I redirect stdout / stderr to file (from D not 
 shell)?

 Self-reply:

 It works using std.c way:

 import std.cstream;
 std.c.stdio.freopen(args[4].ptr, "w+", dout.file);
 std.c.stdio.freopen(args[4].ptr, "w+", derr.file);

 Careful: D strings are not zero-terminated. 
 args[4].toStringz() is the safer choice.

 Cheers,
 Stefan

 Good point Stefan!

why not:
import std.stdio;
stdout = File(args[4], "w+");
stderr = File(args[4], "w+");

"FreeSlave" <freeslave93 gmail.com> writes:

On Sunday, 12 April 2015 at 04:39:06 UTC, Philip Stuckey wrote:
 why not:
 import std.stdio;
 stdout = File(args[4], "w+");
 stderr = File(args[4], "w+");

It just replaces the object, not redirects output. E.g. if you 
use printf somewhere it will use stdout, not file.

Rikki Cattermole <alphaglosined gmail.com> writes:

On 13/04/2015 1:12 a.m., FreeSlave wrote:
 On Sunday, 12 April 2015 at 04:39:06 UTC, Philip Stuckey wrote:
 why not:
 import std.stdio;
 stdout = File(args[4], "w+");
 stderr = File(args[4], "w+");

 It just replaces the object, not redirects output. E.g. if you use
 printf somewhere it will use stdout, not file.

You will need to use writefln instead of printf. As printf uses the 
processes stdout. Changing this would be tricky and OS based.