Temporary silence output (stdout)

[FreeSlave via Digitalmars-d-learn]

On Saturday, 10 May 2014 at 20:24:50 UTC, MarisaLovesUsAll wrote:
> Hi!
> I sometimes got a useless messages in stdout from SDL_Image
> library, and I want to temporary silence it. How do I do?

You can temporary redirect output to file. Example (on C):

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>

int main ()
{
     int stdout_copy = dup(STDOUT_FILENO);

     close (STDOUT_FILENO);

     int stdout_file = creat("myfile.txt", O_RDWR); //it obtains 
the lowest free descriptor - 1, i.e. stdout.
     printf("Hello file\n");
     fflush(stdout); //don't forget to flush
     close(stdout_file);

     dup2(stdout_copy, STDOUT_FILENO);
     printf("Hello console\n");
     return 0;
}

But it's not very portable, you probably will need to write 
something other for Windows system. And there are no checks for 
errors in this example.

Also in SDL specific case it seems like it should redirect by 
default - http://sdl.beuc.net/sdl.wiki/FAQ_Console but I don't 
know whether it's true or not for SDL_Image.