Summary
The EndReading function returns a const char_type pointer to the element just beyond the last element of the string's internal buffer.
const char_type* EndReading() const;
Remarks
It is generally illegal to dereference the returned pointer, unless it is known that the string's internal buffer is null-terminated. The NS_CStringGetData function can be used to determine if a nsACString instance has null-terminated storage.
Example Code
See BeginReading for an example.