Sophie: allegro5-devel-5.0.3-1.fc15 i686

allegro5-devel-5.0.3-1.fc15.i686.rpm

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<h1 class="title">Miscellaneous routines</h1>
<div id="TOC"
><ul
  ><li
    ><a href="#allegro_pi"
      >ALLEGRO_PI</a
      ></li
    ><li
    ><a href="#al_run_main"
      >al_run_main</a
      ></li
    ></ul
  ></div
>
<p
>These functions are declared in the main Allegro header file:</p
><pre
><code
  >#include &lt;allegro5/allegro.h&gt;
</code
  ></pre
><h1 id="allegro_pi"
><a href="#TOC"
  >ALLEGRO_PI</a
  ></h1
><pre
><code
  >#define ALLEGRO_PI        3.14159265358979323846
</code
  ></pre
><p
>C99 compilers have no predefined value like M_PI for the constant π, but you can use this one instead.</p
><h1 id="al_run_main"
><a href="#TOC"
  >al_run_main</a
  ></h1
><pre
><code
  >int al_run_main(int argc, char **argv, int (*user_main)(int, char **))
</code
  ></pre
><p
>This function is useful in cases where you don't have a main() function but want to run Allegro (mostly useful in a wrapper library). Under Windows and Linux this is no problem because you simply can call <a href="system.html#al_install_system"
  >al_install_system</a
  >. But some other system (like OSX) don't allow calling <a href="system.html#al_install_system"
  >al_install_system</a
  > in the main thread. al_run_main will know what to do in that case.</p
><p
>The passed argc and argv will simply be passed on to user_main and the return value of user_main will be returned.</p
>
<p class="timestamp">
Allegro version 5.0.3
 - Last updated: 2011-05-22 02:32:06 UTC
</p>
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