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Most SMILE functions and methods return an integer status code. Negative numbers are used for specific error codes. For a complete list of codes, see the Error codes section in the Reference Manual.

Sometimes SMILE emits a warning or an error message. By default, your program is not notified about these messages: you need to query the information stored in a global instance of DSL_errorStringHandler, accessible through the DSL_errorH function. It is also possible to redirect the error output to FILE* (including stdout or stderr):

DSL_errorH().RedirectToFile(stdout);

For the complete control over warnings and error messages, use DSL_errorStringHandler::Redirect method. Its only argument of this method is a pointer to the instance of the class derived from DSL_errorStringRedirect.

class MyRedirect : public DSL_errorStringRedirect

{

public:

 void LogError(int code, const char *message)

 {

         // do something with the code and message

 }

};

// …

MyRedirect myRedir;

DSL_errorH().Redirect(&myRedir);

Tutorials included in this manual redirect errors to stdout.