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>