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Jonathan Wakely e002afaa8e PR libstdc++/87787 avoid undefined null args to memcpy and memmove 
The C++ char_traits and ctype APIs do not disallow null pointer
arguments, so we need explicit checks to ensure we don't forward null
pointers to memcpy or memmove.

	PR libstdc++/87787
	* include/bits/char_traits.h (char_traits::move): Do not pass null
	pointers to memmove.
	* include/bits/locale_facets.h
	(ctype<char>::widen(const char*, const char*, char*)): Do not
	pass null pointers to memcpy.
	(ctype<char>::narrow(const char*, const char*, char, char*)):
	Likewise.
	(ctype<char>::do_widen(const char*, const char*, char*)):
	Likewise.
	(ctype<char>::do_narrow(const char*, const char*, char, char*)):
	Likewise.

From-SVN: r267651
2019-01-07 14:58:44 +00:00
..
config Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
doc Update documentation for C++17 filesystem library 2019-01-07 12:46:40 +00:00
include PR libstdc++/87787 avoid undefined null args to memcpy and memmove 2019-01-07 14:58:44 +00:00
libsupc++ Update copyright years. 2019-01-01 13:31:55 +01:00
po Update copyright years. 2019-01-01 13:31:55 +01:00
python Update copyright years. 2019-01-01 13:31:55 +01:00
scripts Update copyright years. 2019-01-01 13:31:55 +01:00
src Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
testsuite Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
acinclude.m4 Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
aclocal.m4 Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
ChangeLog PR libstdc++/87787 avoid undefined null args to memcpy and memmove 2019-01-07 14:58:44 +00:00
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ChangeLog-2018 Update copyright years. 2019-01-01 13:31:55 +01:00
config.h.in Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
configure Fix build for systems without POSIX truncate 2019-01-07 12:38:51 +00:00
configure.ac PR libstdc++/67843 set shared_ptr lock policy at build-time 2018-11-27 23:25:56 +00:00
configure.host
crossconfig.m4 Define _GLIBCXX_USE_DEV_RANDOM as replacement for _GLIBCXX_USE_RANDOM_TR1 2018-10-16 15:49:29 +01:00
fragment.am
linkage.m4
Makefile.am Update copyright years. 2019-01-01 13:31:55 +01:00
Makefile.in Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
README

README 

file: libstdc++-v3/README

New users may wish to point their web browsers to the file
index.html in the 'doc/html' subdirectory.  It contains brief
building instructions and notes on how to configure the library in
interesting ways.