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Jonathan Wakely 5f30251862 PR libstdc++/85222 allow catching iostream errors as gcc4-compatible ios::failure 
Define a new exception type derived from std::ios::failure[abi:cxx11]
which also aggregates an object of the gcc4-compatible ios::failure
type. Make __throw_ios_failure throw this new type for iostream errors
that raise exceptions. Provide custom type info for the new type so that
it can be caught by handlers for the gcc4-compatible ios::failure type
as well as handlers for ios::failure[abi:cxx11] and its bases.

	PR libstdc++/85222
	* src/c++11/Makefile.am [ENABLE_DUAL_ABI]: Add special rules for
	cxx11-ios_failure.cc to rewrite type info for __ios_failure.
	* src/c++11/Makefile.in: Regenerate.
	* src/c++11/cxx11-ios_failure.cc (__ios_failure, __iosfail_type_info):
	New types.
	[_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
	* src/c++11/ios.cc (__throw_ios_failure): Remove definition.
	* src/c++98/ios_failure.cc (__construct_ios_failure)
	(__destroy_ios_failure, is_ios_failure_handler): New functions.
	[!_GLIBCXX_USE_DUAL_ABI] (__throw_ios_failure): Define here.
	* testsuite/27_io/ios_base/failure/dual_abi.cc: New.
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Revert changes to
	handler types, to always catch std::ios_base::failure.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/char/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/wchar_t/
	exceptions_failbit.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/char/12297.cc: Likewise.
	* testsuite/27_io/basic_istream/sentry/wchar_t/12297.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/ios_base/storage/2.cc: Likewise.

From-SVN: r259281
2018-04-10 15:36:09 +01:00
..
17_intro
18_support PR libstdc++/84773 use aligned alloc functions for FreeBSD and MinGW cross-compilers 2018-03-12 22:52:16 +00:00
19_diagnostics
20_util PR libstdc++/85183 fix std::variant move-assignment 2018-04-04 00:03:07 +01:00
21_strings
22_locale
23_containers Fix some libstdc++ testsuite failures 2018-03-21 12:32:14 +00:00
24_iterators
25_algorithms
26_numerics
27_io PR libstdc++/85222 allow catching iostream errors as gcc4-compatible ios::failure 2018-04-10 15:36:09 +01:00
28_regex
29_atomics
30_threads
abi
backward
config
data
decimal
experimental xfail experimental/memory_resource/resource_adaptor.cc on 32-bit Solaris/x86 (PR libstdc++/77691) 2018-03-22 13:33:29 +00:00
ext
lib
libstdc++-abi
libstdc++-dg
libstdc++-prettyprinters printers.py (NodeIteratorPrinter): New. 2018-03-08 06:26:15 +00:00
libstdc++-xmethods
performance
special_functions
tr1
tr2
util
Makefile.am
Makefile.in