NAME

       VistaIORepnName, VistaIORepnSize, etc. - obtain information about a type's representation

SYNOPSIS

       typedef enum {
              VistaIOUnknownRepn,
              VistaIOBitRepn, VistaIOUByteRepn, VistaIOSByteRepn, VistaIOShortRepn,
              VistaIOLongRepn,
              VistaIOFloatRepn, VistaIODoubleRepn,
              VistaIOAttrListRepn, VistaIOBooleanRepn, VistaIOBundleRepn, VistaIOListRepn,
              VistaIOPointerRepn, VistaIOStringRepn,
              VistaIOEdgesRepn, VistaIOImageRepn
       } VistaIORepnKind;

       VistaIOBoolean VistaIOIsFloatPtRepn (VistaIORepnKind repn)

       VistaIOBoolean VistaIOIsIntegerRepn (VistaIORepnKind repn)

       VistaIOStringConst VistaIORepnName (VistaIORepnKind repn)

       VistaIODouble VistaIORepnMaxValue (VistaIORepnKind repn)

       VistaIODouble VistaIORepnMinValue (VistaIORepnKind repn)

       int VistaIORepnPrecision (VistaIORepnKind repn)

       size_t VistaIORepnSize (VistaIORepnKind repn)

ARGUMENTS

       repn      Specifies the data type about which information is sought.

DESCRIPTION

       These macros return information about Vista data types, each of which is identified by one
       of the VistaIORepnKind series of integer codes.

       VistaIOIsFloatPtRepn returns TRUE if repn is VistaIOFloatRepn or VistaIODoubleRepn.

       VistaIOIsIntegerRepn  returns  TRUE   if   repn   is   VistaIOBitRepn,   VistaIOUByteRepn,
       VistaIOSByteRepn, VistaIOShortRepn, or VistaIOLongRepn.

       VistaIORepnName  returns  a  string  naming  the specified type. For example, when repn is
       VistaIOBitRepn it returns ``bit''.

       VistaIORepnMaxValue returns the maximum value that can be  represented  by  the  specified
       type.

       VistaIORepnMinValue  returns  the minimum (most negative) value that can be represented by
       the specified type.

       VistaIORepnPrecision returns the minimum number of bits needed to represent the  specified
       type on any machine.

       VistaIORepnSize returns the size, in bytes, of the specified type on the present machine.

SEE ALSO

       VistaIOConst(3),

NOTES

       VistaIORepnMaxValue,  VistaIORepnMinValue,  and  VistaIORepnPrecision  are  undefined (and
       return 0) if repn isn't VistaIOBitRepn through VistaIODoubleRepn, or VistaIOBooleanRepn.

       A new value in the VistaIORepnKind series is assigned by VistaIORegisterType  when  it  is
       called to register a new object type. That new value can be used in a call to any of these
       macros — all return 0 or FALSE except VistaIORepnName, which returns the name of the newly
       registered type.

AUTHOR

       Art Pope <pope@cs.ubc.ca>

       Adaption to vistaio: Gert Wollny <gw.fossdev@gmail.com>