[dakun]

hi everybody,
I have some problem with compiling my udf.
when I want to load the udf, this error apears:

"Error: C:/Users/wswwd/AppData/Local/Temp/udf code.c.4708.0.c: line 83: offset: undeclared variable"
I don't know how to fix it
please help me，
thank you very much.

[AlexanderZ]

if this is full code, than remove line 83

offset=Reserve_User_Scalar_Vars(3);

[vinerm]

As suggested, it can simply be removed if this is the only library using the UDMs. However, if you wish to use it, may be in the future, the variable offset needs to be declared and initialized. This is not a Fluent defined variable. It is another C variable defined by the user and can have any name within the constraints specified by the language and Fluent. To declare and initialize, use the following command

static int offset = UDM_UNRESERVED;

Do note that this needs to be defined as a global variable, therefore, has to be outside DEFINE_ functions. If it is not global, other library or function will not be able to read it and that renders its objective futile.