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r250328 - in /trunk/libstdc++-v3: ChangeLog inc...


Author: redi
Date: Tue Jul 18 23:39:34 2017
New Revision: 250328

URL: https://gcc.gnu.org/viewcvs?rev=250328&root=gcc&view=rev
Log:
PR libstdc++/81395 fix crash when write follows large read

	PR libstdc++/81395
	* include/bits/fstream.tcc (basic_filebuf::xsgetn): Don't set buffer
	pointers for write mode after reading.
	* testsuite/27_io/basic_filebuf/sgetn/char/81395.cc: New.

Added:
    trunk/libstdc++-v3/testsuite/27_io/basic_filebuf/sgetn/char/81395.cc
Modified:
    trunk/libstdc++-v3/ChangeLog
    trunk/libstdc++-v3/include/bits/fstream.tcc


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