Version 6.3.13 for UNIX
 —  Programming Guide  —

Natural Exception Structure

The interface functions that execute Natural code (such as nni_callnat) return a structure named natural_exception that contains further information about a Natural error that might have occurred. The structure is defined in the header file natni.h. This file is contained in the directory $NATDIR/$NATVERS/samples/sysexnni.

The elements of the structure contain the following information.

Format Element Name Content
int natMessageNumber Natural message number.
char natMessageText[NNI_LEN_TEXT+1] Natural message text with all replacements.
char natLibrary[NNI_LEN_LIBRARY+1] Natural library name.
char natMember[NNI_LEN_MEMBER+1] Natural member name.
char natName[NNI_LEN_NAME+1]; Natural function, subroutine or class name.
char natMethod[NNI_LEN_NAME+1]; Natural method or property name.
int int natLine; Natural code line where the error occurred.

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