Input format
- Less restriction on input length
- Input text and charset no longer overlapped
Performance
- Less memory allocation
- Less disk IO
- Do not force GC. This make the fuzzer roughly 10x faster
ISclose() doesn't free memory if a stream's function pointer, close, is NULL.
However, str_stream's close pointer is always NULL and thus leaks
memory.
If Str.length = 5 and area_size = 6, the result of Strgrow is still
area_size = 6. For such case, Strcat_char and Strinsert_char will
overflow one byte.
Kuang-che Wu