// This code is Public Domain. Use, modify, and redistribute at will.
// ----------------------------------------------------------------------------
-// ----------------------------------------------------------------------------
-// C++
-
-double _Complex atan( double _Complex x ) { /* TODO */ };
-float _Complex atan( float _Complex x ) { /* TODO */ };
-long double _Complex atan( long double _Complex x ) { /* TODO */ };
-
-// ----------------------------------------------------------------------------
-// Standard C
-
double _Complex catan( double _Complex x ) { /* TODO */ };
float _Complex catanf( float _Complex x ) { /* TODO */ };
long double _Complex catanl( long double _Complex x ) { /* TODO */ };