-/* ----------------------------------------------------------------------------
- * $Id$
- * ----------------------------------------------------------------------------
- * Public Domain C Library - http://pdclib.sourceforge.net
- * This code is Public Domain. Use, modify, and redistribute at will.
- * --------------------------------------------------------------------------*/
-
-double _Complex ctan( double _Complex x ) { /* TODO */ };
-float _Complex ctanf( float _Complex x ) { /* TODO */ };
-long double _Complex ctanl( long double _Complex x ) { /* TODO */ };