/* Map an error number to a (locale-specific) error message string. Error
numbers are typically errno values, but any number is mapped to a message.
TODO: PDCLib does not yet support locales.
- TODO: strerror() not yet implemented.
-char * strerror( int errnum );
*/
+char * strerror( int errnum );
/* Returns the length of the string s (excluding terminating '\0').
*/