use Perl

• Answer (Score:2)

  by barbie (2653) <reversethis-{ku. ... m} {ta} {eibrab}> on 2005.04.21 4:52 (#39870) Homepage Journal

  char *path;
  sprintf( path, "%s/%s/%s", x, y, z );
  mysub( key, path );

  Reply to This

  • Re:Answer (Score:1)

    by mary.poppins (3530)

    That's some pretty hazardous example code right there.
    • Re:Answer (Score:2)

      by barbie (2653)

      Agreed. And it isn't complete code. The flaw I was highlighting was that the sprintf syntax is different between Perl and C.
  • Re:Answer (Score:2)

    by Matts (1087)

    I really hope this isn't for work :-)
    • Re:Answer (Score:2)

      by barbie (2653)

      It is, but it isn't the code I was using. It was my misunderstanding of sprintf syntax that I was highlighting :)
  • Re:Answer (Score:2)

    by merlyn (47)

    So, you want to poke some random part of your program with a m/d/y string? Whoo hoo! I think you wanted:

    char path[1024];
    sprintf ( path ... );

    And yes, the fixed size buffer there is the root of all evilness of C programs.

    --
    

    • Randal L. Schwartz
    • Stonehenge
    • Re:Answer (Score:2)

      by barbie (2653)

      I'm in the UK, so it would have been a d/m/y string if that was the case ;) I only use x/y/z just as an example, that doesn't resemble the real string I was formatting. You are quite right about fixed size buffers, I was only using a pointer to indicate a string. Makes me realise how lucky we are programming Perl :)
  • And the complete version: (Score:1)

    by Aristotle (5147)

    char *path;
    if( asprintf( &path, "%s/%s/%s", x, y, z ) == -1 )
        errx( "Memory allocation error" );
    mysub( key, path );
    free( path );

    That assumes you have errx and asprintf of course, but they’re reasonably portable.