#include "filename"The file filename is first looked for in the same directory as the current source file (that is the file that contains the #include directive). If it is not found there, it is searched for in the directories contained in the ULP directory path.
The maximum include depth is 10.
Each #include directive is processed only once. This makes sure that there are no multiple definitions of the same variables or functions, which would cause errors.
Portability note
If filename contains a directory path, it is best to always use the forward slash as directory separator (even under Windows!). Windows drive letters should be avoided. This way a User Language Program will run on all platforms.
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