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58 lines
2.3 KiB
Plaintext
58 lines
2.3 KiB
Plaintext
*** Major changes in libio for egcs:
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* Better support for Linux.
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* Dejagnu testsuite.
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*** Major changes in libio version 2.7.0:
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* The data representations of _IO_FILE and streambufs have been modified.
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The layout of the jump-table table _IO_jumps_t has been re-arranged
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to match that of a virtual function table of a streambuf. Therefore,
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we no longer need a separate _IO_FILE::_jumps pointer; instead it can
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be shared with the virtual function table pointer. In addition to
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saving space, this also removes the overhead when double indirection
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was needed, and there are many simplificatons (e.g. we no longer need
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the builtinbuf class.
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* The streambuf::uflow virtual has been added, to match the standard.
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* The ifstream, ofstream, and fstream classes now include the filebuf
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as a member, rather than being pointed to it. Various related changes.
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* Version number changed to generally follow libg++ (and gcc).
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*** Major changes in libio version 0.66 (released with libg++ 2.6.1):
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* Some documentation and an example in iostream.texi on how to derive
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your own class from streambuf.
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* New functions added to stdio: getline, detdelim, snprintf, vsnprintf.
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This is for compatibility with the GNU C library.
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*** Major changes in libio version 0.65 (released with libg++ 2.6):
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* _IO_getline and streambuf::sgetline no longer write a '\0' at the end.
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* A number of improvements to get closer to the ANSI/ISO C++ working
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paper, such as:
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- Added (preliminary support for) new ANSI streambuf::uflow virtual.
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- Added istdiostream and ostdiostream classes.
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- Added ostream::operator<<(bool) and istream::operator>>(bool&).
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* More robust (and faster) initialization and cleanup of standard streambufs.
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* Many small bug fixes, portability improvements, and random enhancements.
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*** Major changes in libio version 0.63 (released with libg++ 2.5.3):
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* There is a g++ bug that causes inconsistent name mangling for the
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assembler name of the virtual function table for the istream class.
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A work-around has been put into streambuf.h, which will make g++
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always do the right thing. Note that this may require you to
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recompile programs that were incorrectly compiled by g++.
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* Functions that do printf-style formatting to the unbuffered
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streams have been optimized to write to a temporary buffer.
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