Index: trunk/archive/pslib/include/psAstrom.h
===================================================================
--- trunk/archive/pslib/include/psAstrom.h	(revision 1518)
+++ trunk/archive/pslib/include/psAstrom.h	(revision 1528)
@@ -221,6 +221,5 @@
 /** Return the cell in FPA which contains the given FPA coordinates */
 psCell *
-psCellInFPA(psCell *out,		///< Cell to return, or NULL
-	    const psPlane *coord,	///< Coordinate in FPA
+psCellInFPA(const psPlane *coord,	///< Coordinate in FPA
 	    const psFPA *fpa)		///< FPA description
 ;
@@ -229,13 +228,11 @@
 /** returns Chip in FPA which contains the given FPA coordinate */
 psChip *
-psChipInFPA (psChip *out,		///< Chip to return, or NULL
-	     const psPlane *coord,	///< coordinate in FPA
-	     const psFPA *fpa) 		///< FPA description
+psChipInFPA(const psPlane *coord,	///< coordinate in FPA
+	    const psFPA *fpa) 		///< FPA description
 ;
 
 /** returns Cell in Chip which contains the given chip coordinate */
 psCell *
-psCellInChip(psCell *out,		///< Cell to return, or NULL
-	     const psPlane *coord,	///< coordinate in chip
+psCellInChip(const psPlane *coord,	///< coordinate in chip
 	     const psChip *chip)	///< chip description
 ;