Preprocessors

As of 1.89.8193.37 (and newer versions of nwn_script_comp) these preprocessor instructions below help debug your code.

They act similar to constant string variables (except __LINE__) insofar as they can be concatenated into a normal string variable as per the example.

However unlike some preprocessors they cannot be included as default function parameters.

List of Preprocessor Macros

Macro Name	Description and Notes
__FUNCTION__	The current function name. eg: "main" if in void main()
__FILE__	The current file name, including extension eg: test_file.nss. Note to get this with no extension you can just use GetScriptName.
__LINE__	The current line. Integer.
__DATE__	The current date at compilation. Format: YYYY-MM-DD
__TIME__	The current time at compilation. Format: HH:MM:SS (24 hour clock)

Example

void main()
{
    // Debug the line
    SendMessageToPC(GetFirstPC(), "Function: " + __FUNCTION__ + " file: " + __FILE__ + " line: " + IntToString(__LINE__) + " date: " + __DATE__ + " time: " + __TIME__);
}

Example output if filename is test.nss:

Function: main file: test.nss line: 3 date: 2025-10-04 time: 22:25:04

Version

This primer was added in 1.89.8193.37 of NWN:EE. scriptcomp: Added support for __FUNCTION__, __FILE__,__LINE__, __DATE__ and __TIME__.