2003-04-12 Paolo Carlini <pcarlini at unitus dot it>
* include/ext/stdio_filebuf.h
(stdio_filebuf::stdio_filebuf(int, openmode, bool, size_t),
stdio_filebuf::stdio_filebuf(__c_file*, openmode, size_t):
_M_buf_size_opt == 0 means only "not to use an allocated buffer"
since a stack-based buffer is used for small values of the size_t
parameter.
* include/bits/fstream.tcc (basic_filebuf::_M_really_overflow).
If _M_buf_size != 0 flush out the buffer (any kind, stack-based too).
* testsuite/ext/stdio_filebuf_2.cc: New testfile.
From-SVN: r65513
