Re-import from Subversion.

[pdclib] / functions / math / copysign.c

diff --git a/functions/math/copysign.c b/functions/math/copysign.c
index f22fcb70b6507f4c57f8dd38d73f8fbd7d474259..98622f433cbb0450cb7e12a154c4ca2b8cbcb3ce 100644 (file)
--- a/functions/math/copysign.c
+++ b/functions/math/copysign.c
@@ -1,19 +1,23 @@
-// ----------------------------------------------------------------------------
-// $Id$
-// ----------------------------------------------------------------------------
-// Public Domain C Library - http://pdclib.sourceforge.net
-// This code is Public Domain. Use, modify, and redistribute at will.
-// ----------------------------------------------------------------------------
+/* ----------------------------------------------------------------------------
+ * $Id$
+ * ----------------------------------------------------------------------------
+ * Public Domain C Library - http://pdclib.sourceforge.net
+ * This code is Public Domain. Use, modify, and redistribute at will.
+ * --------------------------------------------------------------------------*/
 
-// ----------------------------------------------------------------------------
-// C++
-
-float copysign( float x, float y ) { /* TODO */ };
-long double copysign( long double x, long double y ) { /* TODO */ };
+double copysign( double x, double y ) { /* TODO */ };
 
-// ----------------------------------------------------------------------------
-// Standard C
+/* Own code
+{
+    if ( y < 0 )
+    {
+        return ( x < 0 ) ? x : -x;
+    }
+    else
+    {
+        return ( x < 0 ) ? -x : x;
+    }
+}
 
-double copysign( double x, double y ) { /* TODO */ };
 float copysignf( float x, float y ) { /* TODO */ };
 long double copysignl( long double x, long double y ) { /* TODO */ };