Index: /trunk/archive/pslib/include/psMath.h
===================================================================
--- /trunk/archive/pslib/include/psMath.h	(revision 1573)
+++ /trunk/archive/pslib/include/psMath.h	(revision 1574)
@@ -11,8 +11,12 @@
     psType type;			///< data type information
     union {			       
-	psS32 S32;			///< integer value entry
-	psF32 F32;			///< float value entry
-	psF64 F64;			///< double value entry
-	psC32 C32;			///< complex value entry
+        psS8   S8;                      ///< bye value entry
+        psS16 S16;                      ///< short int value entry
+        psU8   U8;                      ///< unsigned byte value entry
+        psU16 U16;                      ///< unsigned short int value entry
+        psF32 F32;                      ///< float value entry
+        psF64 F64;                      ///< double value entry
+        psC32 C32;                      ///< complex value entry
+        psC64 C64;                      ///< double complex value entry
     } data;
 } p_psScalar;
@@ -22,4 +26,13 @@
  *  \{
  */
+
+/** Scalar constructor */
+psScalar *psScalarAlloc(psC64 value,	///< Value to set
+			psElemType dataType ///< Data type
+    );
+
+/** Copy a scalar */
+psScalar *psScalarCopy(psScalar *value	///< Scalar to copy
+    );
 
 /** Perform a binary operation on two data items (psImage, psVector, psScalar). */