The information about the last occurred error is stored within the context in the CFG_CONTEXT structure. The following functions provide a convenient interface for interpreting, querying and printing that information. ]]> void cfg_print_error const CFG_CONTEXT con void cfg_fprint_error const CFG_CONTEXT con FILE *fh char *cfg_get_error_str const CFG_CONTEXT con The function cfg_print_error() prints an error message describing the last error. To print the message to the specified stream, use cfg_fprint_error(), which takes a stream pointer fh as its second argument. Lastly, cfg_get_error_str(), returns an error message in a dynamically allocated string. Be sure to free the memory taken by the string when you do not need it anymore. The following table describes the error constants used by the parsing functions. See section for reference. Value Description CFG_OK Everything is OK CFG_ERROR_NOARG An argument is missing for the option CFG_ERROR_NOTALLOWEDARG An argument is not allowed for the option CFG_ERROR_BADOPT The option's argument could not be parsed CFG_ERROR_BADQUOTE Error in quotations CFG_ERROR_BADNUMBER The option could not be converted to an appropriate numeric type CFG_ERROR_OVERFLOW A given numeric value was too big or too small CFG_ERROR_MULTI Multiple arguments used for an option that takes only one argument CFG_ERROR_NOMEM Not enough memory CFG_ERROR_STOP_STR, CFG_ERROR_STOP_STR_FOUND Stop string was found CFG_ERROR_NOEQUAL Equal sign expected on the line, but no one was found CFG_ERROR_UNKNOWN An unknown option CFG_ERROR_FILE_NOT_FOUND File not found CFG_ERROR_SEEK_ERROR Seek error (fseek() failure) CFG_ERROR_INTERNAL Internal error All of the constants have an alternative, short form, which can be derived by replacing _ERROR_ with _ERR_ in the name of the constant. So for example you can use CFG_ERR_BADOPT as a substitution for CFG_ERROR_BADOPT.