Initializing help system before first use

XPRMgetuntype

Purpose
Get the type and structure of the value stored in a union.
Synopsis
int XPRMgetuntype(XPRMunion un);
Argument
un 
Reference to a union entity
Return value
An encoded type or -1 if the union is undefined.
Further information
The returned type information is bit encoded and associates a type code and a structure that can be extracted using the macros XPRM_TYP(t) and XPRM_STR(t) (see XPRMfindident). If the union value is not associated with a type ID (see XPRMgetuntypeid) the returned type will report only a structure ( XPRM_STR_ARR, XPRM_STR_SET or XPRM_STR_LIST). Otherwise, in the case of a reference ( XPRM_STR_REF) to a non basic type it will be necessary to check the type properties with XPRMgettypeprop in order to identify a structured type.
Related topics
XPRMgetunvalue, XPRMgetuntypeid.

Parent Topic Post processing interface

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