Jason Merrill 5066927d9e re PR libstdc++/4150 (catastrophic performance decrease in C++ code) ... PR libstdc++/4150 * include/std/std_streambuf.h (basic_streambuf::_M_set_indeterminate): Move to filebuf. (basic_streambuf::_M_set_determinate): Likewise. (basic_streambuf::_M_is_indeterminate): Likewise. * include/bits/std_fstream.h (basic_filebuf::_M_filepos): New non-static data member. (basic_filebuf::_M_underflow_common): New non-static member function. (basic_filebuf::_M_underflow, _M_uflow): Call it. (basic_filebuf::sync): Avoid useless seeking. (basic_filebuf::_M_set_indeterminate): Move here from streambuf. Set _M_filepos. (basic_filebuf::_M_set_determinate): Likewise. (basic_filebuf::_M_is_indeterminate): Likewise. * include/bits/fstream.tcc (basic_filebuf::_M_really_overflow): Seek back to _M_out_beg if necessary. (basic_filebuf::seekoff): Likewise. (basic_filebuf::_M_underflow_common): Generalization of old underflow(). Don't seek back to _M_in_beg. * src/ios.cc: Lose _GLIBCPP_AVOID_FSEEK stuff. * config/os/solaris/solaris2.?/bits/os_defines.h: Likewise. * config/os/bsd/freebsd/bits/os_defines.h: Likewise. * config/os/mingw32/bits/os_defines.h: Likewise. * testsuite/27_io/filebuf_virtuals.cc (test05): Don't overspecify ungetc test. From-SVN: r52634		2002-04-22 16:28:05 -04:00
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freebsd/bits
netbsd/bits