You can build the Internationalization Module in debug mode to help uncover and correct internal errors in your code. To build a debug version of the library, you must compile the library, all dependent SourcePro libraries, and all your own object code with the preprocessor flag RW_DEBUG defined. The resultant library and program is slightly larger and slightly slower. See Installing and Building Your SourcePro C++ Products for more information on compiling in debug mode.

The flag RWDEBUG activates a set of PRECONDITION and POSTCONDITION clauses at the beginning and end of critical functions. These preconditions and postconditions are implemented with asserts. A failure causes the program to print the offending condition, along with the file and line number where it occurred. The program then halts.