gcc/libstdc++-v3/include/bits/fstream.tcc
Paolo Carlini 8fc810787b c++config (std::size_t, [...]): Provide typedefs.
2010-06-03  Paolo Carlini  <paolo.carlini@oracle.com>

	* include/bits/c++config (std::size_t, std::ptrdiff_t,
        std::nullptr_t): Provide typedefs.
	* include/c_std/cstddef: Don't provide std::size_t and
	std::ptrdiff_t here.
	* include/c_global/cstddef: Likewise.
	* src/condition_variable.cc: Don't include <cstddef>,
	don't use NULL, use std::size_t and std::ptrdiff_t.
	* src/mt_allocator.cc: Likewise.
	* src/localename.cc: Likewise.
	* src/chrono.cc: Likewise.
	* src/thread.cc: Likewise.
	* include/debug/formatter.h: Likewise.
	* include/debug/functions.h: Likewise.
	* include/std/valarray: Likewise.
	* include/std/thread: Likewise.
	* include/std/type_traits: Likewise.
	* include/std/atomic: Likewise.
	* include/std/iterator: Likewise.
	* include/std/bitset: Likewise.
	* include/std/fstream: Likewise.
	* include/std/mutex: Likewise.
	* include/c_std/cstdlib: Likewise.
	* include/c_std/cstdio: Likewise.
	* include/c_std/ctime: Likewise.
	* include/c_std/cwchar: Likewise.
	* include/c_std/cstring: Likewise.
	* include/parallel/multiway_merge.h: Likewise.
	* include/parallel/multiseq_selection.h: Likewise.
	* include/parallel/base.h: Likewise.
	* include/parallel/basic_iterator.h: Likewise.
	* include/parallel/multiway_mergesort.h
	* include/parallel/partition.h: Likewise.
	* include/ext/string_conversions.h: Likewise.
	* include/ext/pb_ds/assoc_container.hpp: Likewise.
	* include/ext/pb_ds/detail/resize_policy/sample_size_policy.hpp:
	Likewise.
	* include/ext/pb_ds/detail/resize_policy/
	hash_prime_size_policy_imp.hpp: Likewise.
	* include/ext/pb_ds/detail/resize_policy/
	sample_resize_policy.hpp: Likewise.
	* include/ext/pb_ds/detail/resize_policy/
	sample_resize_trigger.hpp: Likewise.
	* include/ext/pb_ds/detail/binomial_heap_base_/
	erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/binomial_heap_base_/
	find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/binomial_heap_base_/
	insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/binomial_heap_base_/
	constructors_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/binomial_heap_base_/
	debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/binomial_heap_base_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	erase_store_hash_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/d: Likewise.etail/cc_hash_table_map_/
	insert_no_store_hash_fn_imps.hpp
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	cmp_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	insert_store_hash_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	info_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	entry_list_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	trace_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	cc_ht_map_.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	resize_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	constructor_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/cc_hash_table_map_/
	erase_no_store_hash_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/unordered_iterator/
	iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/unordered_iterator/
	const_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/unordered_iterator/
	point_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/unordered_iterator/
	const_point_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/r_erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/child_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/update_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/
	insert_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/
	constructors_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/
	const_child_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/split_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/rotate_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/trace_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/node_iterators.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/internal_node.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/point_iterators.hpp: Likewise.
	* include/ext/pb_ds/detail/pat_trie_/iterators_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	r_erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	constructors_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	rotate_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	node_iterators.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	point_iterators.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/bin_search_tree_/
	iterators_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/gp_hash_table_map_/
	find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/gp_hash_table_map_/
	gp_ht_map_.hpp: Likewise.
	* include/ext/pb_ds/detail/gp_hash_table_map_/
	resize_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/gp_hash_table_map_/
	standard_policies.hpp: Likewise.
	* include/ext/pb_ds/detail/tree_policy/
	sample_tree_node_update.hpp: Likewise.
	* include/ext/pb_ds/detail/basic_tree_policy/
	null_node_metadata.hpp: Likewise.
	* include/ext/pb_ds/detail/binary_heap_/const_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/binary_heap_/
	const_point_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/binary_heap_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/trie_policy/
	sample_trie_node_update.hpp: Likewise.
	* include/ext/pb_ds/detail/trie_policy/
	sample_trie_e_access_traits.hpp: Likewise.
	* include/ext/pb_ds/detail/pairing_heap_/erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pairing_heap_/insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pairing_heap_/debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/pairing_heap_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_policy/
	counter_lu_metadata.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	trace_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	null_metadata.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	const_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	constructors_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	iterators_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/left_child_next_sibling_heap_/
	const_point_iterator.hpp: Likewise.
	* include/ext/pb_ds/detail/thin_heap_/erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/thin_heap_/find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/thin_heap_/insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/thin_heap_/
	constructors_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/thin_heap_/debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/thin_heap_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/
	constructors_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/node_iterators.hpp: Likewise.
	* include/ext/pb_ds/detail/ov_tree_map_/
	iterators_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/hash_fn/sample_probe_fn.hpp: Likewise.
	* include/ext/pb_ds/detail/hash_fn/
	sample_ranged_probe_fn.hpp: Likewise.
	* include/ext/pb_ds/detail/hash_fn/sample_range_hashing.hpp: Likewise.
	* include/ext/pb_ds/detail/hash_fn/
	sample_ranged_hash_fn.hpp: Likewise.
	* include/ext/pb_ds/detail/splay_tree_/erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/splay_tree_/find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/splay_tree_/insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/splay_tree_/debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/splay_tree_/splay_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/splay_tree_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	trace_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	find_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/lu_map_.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	constructor_destructor_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	info_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/list_update_map_/
	iterators_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rc_binomial_heap_/
	erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rc_binomial_heap_/
	insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rc_binomial_heap_/
	debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rb_tree_map_/erase_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rb_tree_map_/insert_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rb_tree_map_/debug_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rb_tree_map_/
	split_join_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/detail/rb_tree_map_/info_fn_imps.hpp: Likewise.
	* include/ext/pb_ds/list_update_policy.hpp: Likewise.
	* include/ext/pb_ds/exception.hpp: Likewise.
	* include/ext/pb_ds/tree_policy.hpp: Likewise.
	* include/ext/pb_ds/tag_and_trait.hpp: Likewise.
	* include/ext/pb_ds/hash_policy.hpp: Likewise.
	* include/ext/pb_ds/trie_policy.hpp: Likewise.
	* include/ext/pb_ds/priority_queue.hpp: Likewise.
	* include/ext/throw_allocator.h: Likewis: Likewise.e.
	* include/ext/bitmap_allocator.h
	* include/ext/rc_string_base.h: Likewise.
	* include/ext/new_allocator.h: Likewise.
	* include/ext/codecvt_specializations.h: Likewise.
	* include/ext/functional: Likewise.: Likewise.
	* include/ext/array_allocator.h: Likewise.
	* include/ext/mt_allocator.h: Likewise.
	* include/ext/sso_string_base.h: Likewise.
	* include/profile/impl/profiler_trace.h: Likewise.
	* include/profile/impl/profiler_node.h: Likewise.
	* include/bits/stl_algobase.h: Likewise.
	* include/bits/functional_hash.h: Likewise.
	* include/bits/locale_facets.tcc: Likewise.
	* include/bits/locale_facets.h: Likewise.
	* include/bits/stl_iterator_base_types.h: Likewise.
	* include/bits/move.h: Likewise.
	* include/bits/boost_concept_check.h: Likewise.
	* include/bits/basic_string.tcc: Likewise.
	* include/bits/locale_facets_nonio.tcc: Likewise.
	* include/bits/fstream.tcc: Likewise.
	* include/bits/locale_facets_nonio.h: Likewise.
	* include/c_global/cstdlib: Likewise.
	* include/c_global/cstdio: Likewise.
	* include/c_global/ctime: Likewise.
	* include/c_global/cwchar: Likewise.
	* include/c_global/cstring
	* include/tr1/type_traits: Likewise.
	* include/backward/hash_fun.h: Likewise.
	* libsupc++/new: Likewise.
	* libsupc++/initializer_list: Likewise.
	* testsuite/27_io/basic_ofstream/pthread2.cc: Likewise.
	* testsuite/27_io/basic_iostream/cons/2020.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sgetn/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sgetn/char/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/overflow/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/overflow/char/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sgetc/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sgetc/char/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sputn/wchar_t/1057.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sputn/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sputn/char/1057.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sputn/char/1.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sputc/wchar_t/1057.cc: Likewise.
	* testsuite/27_io/basic_streambuf/sputc/char/1057.cc: Likewise.
	* testsuite/27_io/objects/wchar_t/5268.cc: Likewise.
	* testsuite/27_io/objects/char/9661-1.cc: Likewise.
	* testsuite/27_io/objects/char/5268.cc: Likewise.
	* testsuite/27_io/objects/char/10.cc: Likewise.
	* testsuite/27_io/basic_ios/copyfmt/char/1.cc: Likewise.
	* testsuite/27_io/basic_ios/copyfmt/char/2.cc: Likewise.
	* testsuite/27_io/basic_ios/exceptions/char/1.cc: Likewise.
	* testsuite/27_io/basic_ios/locales/char/1.cc: Likewise.
	* testsuite/27_io/basic_ios/clear/char/1.cc: Likewise.
	* testsuite/27_io/basic_ostringstream/pthread3.cc: Likewise.
	* testsuite/27_io/basic_stringbuf/sputc/wchar_t/1057.cc: Likewise.
	* testsuite/27_io/basic_stringbuf/sputc/char/1057.cc: Likewise.
	* testsuite/27_io/basic_stringbuf/sputn/wchar_t/1057.cc: Likewise.
	* testsuite/27_io/basic_stringbuf/sputn/char/1057.cc: Likewise.
	* testsuite/27_io/basic_istream/get/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/get/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/ignore/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/ignore/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/peek/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/peek/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/getline/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/getline/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	exceptions_null.cc
	* testsuite/27_io/basic_istream/extractors_other/wchar_t/
	1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_other/char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/cons/3.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/
	wchar_t/01.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_arithmetic/
	char/01.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	wchar_t/2.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	wchar_t/3.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	char/1.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	char/2.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	char/3.cc: Likewise.
	* testsuite/27_io/basic_istream/extractors_character/
	char/9826.cc: Likewise.
	* testsuite/27_io/basic_istream/read/wchar_t/1.cc: Likewise.
	* testsuite/27_io/basic_istream/read/char/1.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/wchar_t/
	1.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/
	exceptions_null.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_other/char/1.cc: Likewise.
	* testsuite/27_io/basic_ostream/cons/2020.cc: Likewise.
	* testsuite/27_io/basic_ostream/sentry/pod/1.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_character/
	wchar_t/8.cc: Likewise.
	* testsuite/27_io/basic_ostream/inserters_character/
	char/8.cc: Likewise.
	* testsuite/27_io/basic_filebuf/setbuf/char/1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/sputc/char/1057.cc: Likewise.
	* testsuite/27_io/basic_filebuf/open/char/1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/open/char/2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/open/char/9507.cc: Likewise.
	* testsuite/27_io/basic_filebuf/imbue/wchar_t/14975-2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-3.cc: Likewise.
	* testsuite/27_io/basic_filebuf/overflow/wchar_t/11305-4.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/wchar_t/12790-3.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/char/9964.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/char/1.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/char/2.cc: Likewise.
	* testsuite/27_io/basic_filebuf/close/char/12790-3.cc: Likewise.
	* testsuite/27_io/basic_filebuf/sputn/char/1057.cc: Likewise.
	* testsuite/24_iterators/ostreambuf_iterator/2.cc: Likewise.
	* testsuite/18_support/bad_exception/23591_thread-1.c
	* testsuite/18_support/new_delete_placement.cc: Likewise.
	* testsuite/18_support/pthread_guard.cc: Likewise.
	* testsuite/21_strings/basic_string/operations/wchar_t/1.cc: Likewise.
	* testsuite/21_strings/basic_string/operations/char/1.cc: Likewise.
	* testsuite/21_strings/basic_string/pthread4.cc: Likewise.
	* testsuite/21_strings/basic_string/cons/wchar_t/5.cc: Likewise.
	* testsuite/21_strings/basic_string/cons/char/5.cc: Likewise.
	* testsuite/30_threads/timed_mutex/cons/assign_neg.cc: Likewise.
	* testsuite/30_threads/timed_mutex/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/cons/assign_neg.cc: Likewise.
	* testsuite/30_threads/recursive_mutex/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/mutex/cons/assign_neg.cc: Likewise.
	* testsuite/30_threads/mutex/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/thread/cons/assign_neg.cc: Likewise.
	* testsuite/30_threads/thread/cons/copy_neg.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/cons/
	assign_neg.cc: Likewise.
	* testsuite/30_threads/recursive_timed_mutex/cons/
	copy_neg.cc: Likewise.
	* testsuite/ext/mt_allocator/22309_thread.cc: Likewise.
	* testsuite/ext/slist/23781.cc: Likewise.
	* testsuite/ext/rope/pthread7-rope.cc: Likewise.
	* testsuite/ext/stdio_filebuf/char/10063-2.cc: Likewise.
	* testsuite/22_locale/ctype/is/wchar_t/1.cc: Likewise.
	* testsuite/22_locale/ctype/is/char/1.cc: Likewise.
	* testsuite/22_locale/time_put/put/char/12439_1.cc: Likewise.
	* testsuite/22_locale/time_put/put/char/12439_3.cc: Likewise.
	* testsuite/22_locale/locale/cons/2.cc: Likewise.
	* testsuite/22_locale/locale/cons/12658_thread-1.cc: Likewise.
	* testsuite/22_locale/locale/cons/29217.cc: Likewise.
	* testsuite/22_locale/locale/global_locale_objects/14071.cc: Likewise.
	* testsuite/22_locale/locale/global_locale_objects/2.cc: Likewise.
	* testsuite/tr1/6_containers/unordered_multimap/
	requirements/iterator_null_neg.cc: Likewise.
	* testsuite/tr1/6_containers/unordered_multiset/
	requirements/iterator_null_neg.cc: Likewise.
	* testsuite/29_atomics/atomic_address/cons/single_value.cc: Likewise.
	* testsuite/29_atomics/atomic_address/cons/aggregate.cc: Likewise.
	* testsuite/23_containers/multimap/23781.cc: Likewise.
	* testsuite/23_containers/set/23781.cc: Likewise.
	* testsuite/23_containers/multiset/23781.cc: Likewise.
	* testsuite/23_containers/list/pthread1.cc: Likewise.
	* testsuite/23_containers/list/23781.cc: Likewise.
	* testsuite/23_containers/map/pthread6.cc: Likewise.
	* testsuite/23_containers/map/23781.cc: Likewise.
	* testsuite/util/regression/rand/priority_queue/
	rand_regression_test.hpp: Likewise.
	* testsuite/util/regression/rand/priority_queue/
	container_rand_regression_test.tcc: Likewise.
	* testsuite/util/regression/rand/assoc/
	rand_regression_test.hpp: Likewise.
	* testsuite/util/regression/rand/assoc/
	container_rand_regression_test.tcc: Likewise.
	* testsuite/util/testsuite_hooks.cc: Likewise.
	* testsuite/util/testsuite_io.h: Likewise.
	* testsuite/util/testsuite_iterators.h: Likewise.
	* testsuite/util/replacement_memory_operators.h: Likewise.
	* testsuite/util/testsuite_allocator.h: Likewise.
	* testsuite/util/testsuite_performance.h: Likewise.

From-SVN: r160231
2010-06-03 19:15:56 +00:00

927 lines
27 KiB
C++

// File based streams -*- C++ -*-
// Copyright (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
// 2007, 2008, 2009
// Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library. This library is free
// software; you can redistribute it and/or modify it under the
// terms of the GNU General Public License as published by the
// Free Software Foundation; either version 3, or (at your option)
// any later version.
// This library is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
// Under Section 7 of GPL version 3, you are granted additional
// permissions described in the GCC Runtime Library Exception, version
// 3.1, as published by the Free Software Foundation.
// You should have received a copy of the GNU General Public License and
// a copy of the GCC Runtime Library Exception along with this program;
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
// <http://www.gnu.org/licenses/>.
/** @file fstream.tcc
* This is an internal header file, included by other library headers.
* You should not attempt to use it directly.
*/
//
// ISO C++ 14882: 27.8 File-based streams
//
#ifndef _FSTREAM_TCC
#define _FSTREAM_TCC 1
#pragma GCC system_header
#include <cxxabi-forced.h>
_GLIBCXX_BEGIN_NAMESPACE(std)
template<typename _CharT, typename _Traits>
void
basic_filebuf<_CharT, _Traits>::
_M_allocate_internal_buffer()
{
// Allocate internal buffer only if one doesn't already exist
// (either allocated or provided by the user via setbuf).
if (!_M_buf_allocated && !_M_buf)
{
_M_buf = new char_type[_M_buf_size];
_M_buf_allocated = true;
}
}
template<typename _CharT, typename _Traits>
void
basic_filebuf<_CharT, _Traits>::
_M_destroy_internal_buffer() throw()
{
if (_M_buf_allocated)
{
delete [] _M_buf;
_M_buf = 0;
_M_buf_allocated = false;
}
delete [] _M_ext_buf;
_M_ext_buf = 0;
_M_ext_buf_size = 0;
_M_ext_next = 0;
_M_ext_end = 0;
}
template<typename _CharT, typename _Traits>
basic_filebuf<_CharT, _Traits>::
basic_filebuf() : __streambuf_type(), _M_lock(), _M_file(&_M_lock),
_M_mode(ios_base::openmode(0)), _M_state_beg(), _M_state_cur(),
_M_state_last(), _M_buf(0), _M_buf_size(BUFSIZ),
_M_buf_allocated(false), _M_reading(false), _M_writing(false), _M_pback(),
_M_pback_cur_save(0), _M_pback_end_save(0), _M_pback_init(false),
_M_codecvt(0), _M_ext_buf(0), _M_ext_buf_size(0), _M_ext_next(0),
_M_ext_end(0)
{
if (has_facet<__codecvt_type>(this->_M_buf_locale))
_M_codecvt = &use_facet<__codecvt_type>(this->_M_buf_locale);
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::__filebuf_type*
basic_filebuf<_CharT, _Traits>::
open(const char* __s, ios_base::openmode __mode)
{
__filebuf_type *__ret = 0;
if (!this->is_open())
{
_M_file.open(__s, __mode);
if (this->is_open())
{
_M_allocate_internal_buffer();
_M_mode = __mode;
// Setup initial buffer to 'uncommitted' mode.
_M_reading = false;
_M_writing = false;
_M_set_buffer(-1);
// Reset to initial state.
_M_state_last = _M_state_cur = _M_state_beg;
// 27.8.1.3,4
if ((__mode & ios_base::ate)
&& this->seekoff(0, ios_base::end, __mode)
== pos_type(off_type(-1)))
this->close();
else
__ret = this;
}
}
return __ret;
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::__filebuf_type*
basic_filebuf<_CharT, _Traits>::
close()
{
if (!this->is_open())
return 0;
bool __testfail = false;
{
// NB: Do this here so that re-opened filebufs will be cool...
struct __close_sentry
{
basic_filebuf *__fb;
__close_sentry (basic_filebuf *__fbi): __fb(__fbi) { }
~__close_sentry ()
{
__fb->_M_mode = ios_base::openmode(0);
__fb->_M_pback_init = false;
__fb->_M_destroy_internal_buffer();
__fb->_M_reading = false;
__fb->_M_writing = false;
__fb->_M_set_buffer(-1);
__fb->_M_state_last = __fb->_M_state_cur = __fb->_M_state_beg;
}
} __cs (this);
__try
{
if (!_M_terminate_output())
__testfail = true;
}
__catch(__cxxabiv1::__forced_unwind&)
{
_M_file.close();
__throw_exception_again;
}
__catch(...)
{ __testfail = true; }
}
if (!_M_file.close())
__testfail = true;
if (__testfail)
return 0;
else
return this;
}
template<typename _CharT, typename _Traits>
streamsize
basic_filebuf<_CharT, _Traits>::
showmanyc()
{
streamsize __ret = -1;
const bool __testin = _M_mode & ios_base::in;
if (__testin && this->is_open())
{
// For a stateful encoding (-1) the pending sequence might be just
// shift and unshift prefixes with no actual character.
__ret = this->egptr() - this->gptr();
#if _GLIBCXX_HAVE_DOS_BASED_FILESYSTEM
// About this workaround, see libstdc++/20806.
const bool __testbinary = _M_mode & ios_base::binary;
if (__check_facet(_M_codecvt).encoding() >= 0
&& __testbinary)
#else
if (__check_facet(_M_codecvt).encoding() >= 0)
#endif
__ret += _M_file.showmanyc() / _M_codecvt->max_length();
}
return __ret;
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::int_type
basic_filebuf<_CharT, _Traits>::
underflow()
{
int_type __ret = traits_type::eof();
const bool __testin = _M_mode & ios_base::in;
if (__testin && !_M_writing)
{
// Check for pback madness, and if so switch back to the
// normal buffers and jet outta here before expensive
// fileops happen...
_M_destroy_pback();
if (this->gptr() < this->egptr())
return traits_type::to_int_type(*this->gptr());
// Get and convert input sequence.
const size_t __buflen = _M_buf_size > 1 ? _M_buf_size - 1 : 1;
// Will be set to true if ::read() returns 0 indicating EOF.
bool __got_eof = false;
// Number of internal characters produced.
streamsize __ilen = 0;
codecvt_base::result __r = codecvt_base::ok;
if (__check_facet(_M_codecvt).always_noconv())
{
__ilen = _M_file.xsgetn(reinterpret_cast<char*>(this->eback()),
__buflen);
if (__ilen == 0)
__got_eof = true;
}
else
{
// Worst-case number of external bytes.
// XXX Not done encoding() == -1.
const int __enc = _M_codecvt->encoding();
streamsize __blen; // Minimum buffer size.
streamsize __rlen; // Number of chars to read.
if (__enc > 0)
__blen = __rlen = __buflen * __enc;
else
{
__blen = __buflen + _M_codecvt->max_length() - 1;
__rlen = __buflen;
}
const streamsize __remainder = _M_ext_end - _M_ext_next;
__rlen = __rlen > __remainder ? __rlen - __remainder : 0;
// An imbue in 'read' mode implies first converting the external
// chars already present.
if (_M_reading && this->egptr() == this->eback() && __remainder)
__rlen = 0;
// Allocate buffer if necessary and move unconverted
// bytes to front.
if (_M_ext_buf_size < __blen)
{
char* __buf = new char[__blen];
if (__remainder)
__builtin_memcpy(__buf, _M_ext_next, __remainder);
delete [] _M_ext_buf;
_M_ext_buf = __buf;
_M_ext_buf_size = __blen;
}
else if (__remainder)
__builtin_memmove(_M_ext_buf, _M_ext_next, __remainder);
_M_ext_next = _M_ext_buf;
_M_ext_end = _M_ext_buf + __remainder;
_M_state_last = _M_state_cur;
do
{
if (__rlen > 0)
{
// Sanity check!
// This may fail if the return value of
// codecvt::max_length() is bogus.
if (_M_ext_end - _M_ext_buf + __rlen > _M_ext_buf_size)
{
__throw_ios_failure(__N("basic_filebuf::underflow "
"codecvt::max_length() "
"is not valid"));
}
streamsize __elen = _M_file.xsgetn(_M_ext_end, __rlen);
if (__elen == 0)
__got_eof = true;
else if (__elen == -1)
break;
_M_ext_end += __elen;
}
char_type* __iend = this->eback();
if (_M_ext_next < _M_ext_end)
__r = _M_codecvt->in(_M_state_cur, _M_ext_next,
_M_ext_end, _M_ext_next,
this->eback(),
this->eback() + __buflen, __iend);
if (__r == codecvt_base::noconv)
{
size_t __avail = _M_ext_end - _M_ext_buf;
__ilen = std::min(__avail, __buflen);
traits_type::copy(this->eback(),
reinterpret_cast<char_type*>
(_M_ext_buf), __ilen);
_M_ext_next = _M_ext_buf + __ilen;
}
else
__ilen = __iend - this->eback();
// _M_codecvt->in may return error while __ilen > 0: this is
// ok, and actually occurs in case of mixed encodings (e.g.,
// XML files).
if (__r == codecvt_base::error)
break;
__rlen = 1;
}
while (__ilen == 0 && !__got_eof);
}
if (__ilen > 0)
{
_M_set_buffer(__ilen);
_M_reading = true;
__ret = traits_type::to_int_type(*this->gptr());
}
else if (__got_eof)
{
// If the actual end of file is reached, set 'uncommitted'
// mode, thus allowing an immediate write without an
// intervening seek.
_M_set_buffer(-1);
_M_reading = false;
// However, reaching it while looping on partial means that
// the file has got an incomplete character.
if (__r == codecvt_base::partial)
__throw_ios_failure(__N("basic_filebuf::underflow "
"incomplete character in file"));
}
else if (__r == codecvt_base::error)
__throw_ios_failure(__N("basic_filebuf::underflow "
"invalid byte sequence in file"));
else
__throw_ios_failure(__N("basic_filebuf::underflow "
"error reading the file"));
}
return __ret;
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::int_type
basic_filebuf<_CharT, _Traits>::
pbackfail(int_type __i)
{
int_type __ret = traits_type::eof();
const bool __testin = _M_mode & ios_base::in;
if (__testin && !_M_writing)
{
// Remember whether the pback buffer is active, otherwise below
// we may try to store in it a second char (libstdc++/9761).
const bool __testpb = _M_pback_init;
const bool __testeof = traits_type::eq_int_type(__i, __ret);
int_type __tmp;
if (this->eback() < this->gptr())
{
this->gbump(-1);
__tmp = traits_type::to_int_type(*this->gptr());
}
else if (this->seekoff(-1, ios_base::cur) != pos_type(off_type(-1)))
{
__tmp = this->underflow();
if (traits_type::eq_int_type(__tmp, __ret))
return __ret;
}
else
{
// At the beginning of the buffer, need to make a
// putback position available. But the seek may fail
// (f.i., at the beginning of a file, see
// libstdc++/9439) and in that case we return
// traits_type::eof().
return __ret;
}
// Try to put back __i into input sequence in one of three ways.
// Order these tests done in is unspecified by the standard.
if (!__testeof && traits_type::eq_int_type(__i, __tmp))
__ret = __i;
else if (__testeof)
__ret = traits_type::not_eof(__i);
else if (!__testpb)
{
_M_create_pback();
_M_reading = true;
*this->gptr() = traits_type::to_char_type(__i);
__ret = __i;
}
}
return __ret;
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::int_type
basic_filebuf<_CharT, _Traits>::
overflow(int_type __c)
{
int_type __ret = traits_type::eof();
const bool __testeof = traits_type::eq_int_type(__c, __ret);
const bool __testout = _M_mode & ios_base::out;
if (__testout && !_M_reading)
{
if (this->pbase() < this->pptr())
{
// If appropriate, append the overflow char.
if (!__testeof)
{
*this->pptr() = traits_type::to_char_type(__c);
this->pbump(1);
}
// Convert pending sequence to external representation,
// and output.
if (_M_convert_to_external(this->pbase(),
this->pptr() - this->pbase()))
{
_M_set_buffer(0);
__ret = traits_type::not_eof(__c);
}
}
else if (_M_buf_size > 1)
{
// Overflow in 'uncommitted' mode: set _M_writing, set
// the buffer to the initial 'write' mode, and put __c
// into the buffer.
_M_set_buffer(0);
_M_writing = true;
if (!__testeof)
{
*this->pptr() = traits_type::to_char_type(__c);
this->pbump(1);
}
__ret = traits_type::not_eof(__c);
}
else
{
// Unbuffered.
char_type __conv = traits_type::to_char_type(__c);
if (__testeof || _M_convert_to_external(&__conv, 1))
{
_M_writing = true;
__ret = traits_type::not_eof(__c);
}
}
}
return __ret;
}
template<typename _CharT, typename _Traits>
bool
basic_filebuf<_CharT, _Traits>::
_M_convert_to_external(_CharT* __ibuf, streamsize __ilen)
{
// Sizes of external and pending output.
streamsize __elen;
streamsize __plen;
if (__check_facet(_M_codecvt).always_noconv())
{
__elen = _M_file.xsputn(reinterpret_cast<char*>(__ibuf), __ilen);
__plen = __ilen;
}
else
{
// Worst-case number of external bytes needed.
// XXX Not done encoding() == -1.
streamsize __blen = __ilen * _M_codecvt->max_length();
char* __buf = static_cast<char*>(__builtin_alloca(__blen));
char* __bend;
const char_type* __iend;
codecvt_base::result __r;
__r = _M_codecvt->out(_M_state_cur, __ibuf, __ibuf + __ilen,
__iend, __buf, __buf + __blen, __bend);
if (__r == codecvt_base::ok || __r == codecvt_base::partial)
__blen = __bend - __buf;
else if (__r == codecvt_base::noconv)
{
// Same as the always_noconv case above.
__buf = reinterpret_cast<char*>(__ibuf);
__blen = __ilen;
}
else
__throw_ios_failure(__N("basic_filebuf::_M_convert_to_external "
"conversion error"));
__elen = _M_file.xsputn(__buf, __blen);
__plen = __blen;
// Try once more for partial conversions.
if (__r == codecvt_base::partial && __elen == __plen)
{
const char_type* __iresume = __iend;
streamsize __rlen = this->pptr() - __iend;
__r = _M_codecvt->out(_M_state_cur, __iresume,
__iresume + __rlen, __iend, __buf,
__buf + __blen, __bend);
if (__r != codecvt_base::error)
{
__rlen = __bend - __buf;
__elen = _M_file.xsputn(__buf, __rlen);
__plen = __rlen;
}
else
__throw_ios_failure(__N("basic_filebuf::_M_convert_to_external "
"conversion error"));
}
}
return __elen == __plen;
}
template<typename _CharT, typename _Traits>
streamsize
basic_filebuf<_CharT, _Traits>::
xsgetn(_CharT* __s, streamsize __n)
{
// Clear out pback buffer before going on to the real deal...
streamsize __ret = 0;
if (_M_pback_init)
{
if (__n > 0 && this->gptr() == this->eback())
{
*__s++ = *this->gptr();
this->gbump(1);
__ret = 1;
--__n;
}
_M_destroy_pback();
}
// Optimization in the always_noconv() case, to be generalized in the
// future: when __n > __buflen we read directly instead of using the
// buffer repeatedly.
const bool __testin = _M_mode & ios_base::in;
const streamsize __buflen = _M_buf_size > 1 ? _M_buf_size - 1 : 1;
if (__n > __buflen && __check_facet(_M_codecvt).always_noconv()
&& __testin && !_M_writing)
{
// First, copy the chars already present in the buffer.
const streamsize __avail = this->egptr() - this->gptr();
if (__avail != 0)
{
if (__avail == 1)
*__s = *this->gptr();
else
traits_type::copy(__s, this->gptr(), __avail);
__s += __avail;
this->gbump(__avail);
__ret += __avail;
__n -= __avail;
}
// Need to loop in case of short reads (relatively common
// with pipes).
streamsize __len;
for (;;)
{
__len = _M_file.xsgetn(reinterpret_cast<char*>(__s),
__n);
if (__len == -1)
__throw_ios_failure(__N("basic_filebuf::xsgetn "
"error reading the file"));
if (__len == 0)
break;
__n -= __len;
__ret += __len;
if (__n == 0)
break;
__s += __len;
}
if (__n == 0)
{
_M_set_buffer(0);
_M_reading = true;
}
else if (__len == 0)
{
// If end of file is reached, set 'uncommitted'
// mode, thus allowing an immediate write without
// an intervening seek.
_M_set_buffer(-1);
_M_reading = false;
}
}
else
__ret += __streambuf_type::xsgetn(__s, __n);
return __ret;
}
template<typename _CharT, typename _Traits>
streamsize
basic_filebuf<_CharT, _Traits>::
xsputn(const _CharT* __s, streamsize __n)
{
// Optimization in the always_noconv() case, to be generalized in the
// future: when __n is sufficiently large we write directly instead of
// using the buffer.
streamsize __ret = 0;
const bool __testout = _M_mode & ios_base::out;
if (__check_facet(_M_codecvt).always_noconv()
&& __testout && !_M_reading)
{
// Measurement would reveal the best choice.
const streamsize __chunk = 1ul << 10;
streamsize __bufavail = this->epptr() - this->pptr();
// Don't mistake 'uncommitted' mode buffered with unbuffered.
if (!_M_writing && _M_buf_size > 1)
__bufavail = _M_buf_size - 1;
const streamsize __limit = std::min(__chunk, __bufavail);
if (__n >= __limit)
{
const streamsize __buffill = this->pptr() - this->pbase();
const char* __buf = reinterpret_cast<const char*>(this->pbase());
__ret = _M_file.xsputn_2(__buf, __buffill,
reinterpret_cast<const char*>(__s),
__n);
if (__ret == __buffill + __n)
{
_M_set_buffer(0);
_M_writing = true;
}
if (__ret > __buffill)
__ret -= __buffill;
else
__ret = 0;
}
else
__ret = __streambuf_type::xsputn(__s, __n);
}
else
__ret = __streambuf_type::xsputn(__s, __n);
return __ret;
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::__streambuf_type*
basic_filebuf<_CharT, _Traits>::
setbuf(char_type* __s, streamsize __n)
{
if (!this->is_open())
{
if (__s == 0 && __n == 0)
_M_buf_size = 1;
else if (__s && __n > 0)
{
// This is implementation-defined behavior, and assumes that
// an external char_type array of length __n exists and has
// been pre-allocated. If this is not the case, things will
// quickly blow up. When __n > 1, __n - 1 positions will be
// used for the get area, __n - 1 for the put area and 1
// position to host the overflow char of a full put area.
// When __n == 1, 1 position will be used for the get area
// and 0 for the put area, as in the unbuffered case above.
_M_buf = __s;
_M_buf_size = __n;
}
}
return this;
}
// According to 27.8.1.4 p11 - 13, seekoff should ignore the last
// argument (of type openmode).
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::pos_type
basic_filebuf<_CharT, _Traits>::
seekoff(off_type __off, ios_base::seekdir __way, ios_base::openmode)
{
int __width = 0;
if (_M_codecvt)
__width = _M_codecvt->encoding();
if (__width < 0)
__width = 0;
pos_type __ret = pos_type(off_type(-1));
const bool __testfail = __off != 0 && __width <= 0;
if (this->is_open() && !__testfail)
{
// Ditch any pback buffers to avoid confusion.
_M_destroy_pback();
// Correct state at destination. Note that this is the correct
// state for the current position during output, because
// codecvt::unshift() returns the state to the initial state.
// This is also the correct state at the end of the file because
// an unshift sequence should have been written at the end.
__state_type __state = _M_state_beg;
off_type __computed_off = __off * __width;
if (_M_reading && __way == ios_base::cur)
{
if (_M_codecvt->always_noconv())
__computed_off += this->gptr() - this->egptr();
else
{
// Calculate offset from _M_ext_buf that corresponds
// to gptr(). Note: uses _M_state_last, which
// corresponds to eback().
const int __gptr_off =
_M_codecvt->length(_M_state_last, _M_ext_buf, _M_ext_next,
this->gptr() - this->eback());
__computed_off += _M_ext_buf + __gptr_off - _M_ext_end;
// _M_state_last is modified by codecvt::length() so
// it now corresponds to gptr().
__state = _M_state_last;
}
}
__ret = _M_seek(__computed_off, __way, __state);
}
return __ret;
}
// _GLIBCXX_RESOLVE_LIB_DEFECTS
// 171. Strange seekpos() semantics due to joint position
// According to the resolution of DR 171, seekpos should ignore the last
// argument (of type openmode).
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::pos_type
basic_filebuf<_CharT, _Traits>::
seekpos(pos_type __pos, ios_base::openmode)
{
pos_type __ret = pos_type(off_type(-1));
if (this->is_open())
{
// Ditch any pback buffers to avoid confusion.
_M_destroy_pback();
__ret = _M_seek(off_type(__pos), ios_base::beg, __pos.state());
}
return __ret;
}
template<typename _CharT, typename _Traits>
typename basic_filebuf<_CharT, _Traits>::pos_type
basic_filebuf<_CharT, _Traits>::
_M_seek(off_type __off, ios_base::seekdir __way, __state_type __state)
{
pos_type __ret = pos_type(off_type(-1));
if (_M_terminate_output())
{
// Returns pos_type(off_type(-1)) in case of failure.
__ret = pos_type(_M_file.seekoff(__off, __way));
if (__ret != pos_type(off_type(-1)))
{
_M_reading = false;
_M_writing = false;
_M_ext_next = _M_ext_end = _M_ext_buf;
_M_set_buffer(-1);
_M_state_cur = __state;
__ret.state(_M_state_cur);
}
}
return __ret;
}
template<typename _CharT, typename _Traits>
bool
basic_filebuf<_CharT, _Traits>::
_M_terminate_output()
{
// Part one: update the output sequence.
bool __testvalid = true;
if (this->pbase() < this->pptr())
{
const int_type __tmp = this->overflow();
if (traits_type::eq_int_type(__tmp, traits_type::eof()))
__testvalid = false;
}
// Part two: output unshift sequence.
if (_M_writing && !__check_facet(_M_codecvt).always_noconv()
&& __testvalid)
{
// Note: this value is arbitrary, since there is no way to
// get the length of the unshift sequence from codecvt,
// without calling unshift.
const size_t __blen = 128;
char __buf[__blen];
codecvt_base::result __r;
streamsize __ilen = 0;
do
{
char* __next;
__r = _M_codecvt->unshift(_M_state_cur, __buf,
__buf + __blen, __next);
if (__r == codecvt_base::error)
__testvalid = false;
else if (__r == codecvt_base::ok ||
__r == codecvt_base::partial)
{
__ilen = __next - __buf;
if (__ilen > 0)
{
const streamsize __elen = _M_file.xsputn(__buf, __ilen);
if (__elen != __ilen)
__testvalid = false;
}
}
}
while (__r == codecvt_base::partial && __ilen > 0 && __testvalid);
if (__testvalid)
{
// This second call to overflow() is required by the standard,
// but it's not clear why it's needed, since the output buffer
// should be empty by this point (it should have been emptied
// in the first call to overflow()).
const int_type __tmp = this->overflow();
if (traits_type::eq_int_type(__tmp, traits_type::eof()))
__testvalid = false;
}
}
return __testvalid;
}
template<typename _CharT, typename _Traits>
int
basic_filebuf<_CharT, _Traits>::
sync()
{
// Make sure that the internal buffer resyncs its idea of
// the file position with the external file.
int __ret = 0;
if (this->pbase() < this->pptr())
{
const int_type __tmp = this->overflow();
if (traits_type::eq_int_type(__tmp, traits_type::eof()))
__ret = -1;
}
return __ret;
}
template<typename _CharT, typename _Traits>
void
basic_filebuf<_CharT, _Traits>::
imbue(const locale& __loc)
{
bool __testvalid = true;
const __codecvt_type* _M_codecvt_tmp = 0;
if (__builtin_expect(has_facet<__codecvt_type>(__loc), true))
_M_codecvt_tmp = &use_facet<__codecvt_type>(__loc);
if (this->is_open())
{
// encoding() == -1 is ok only at the beginning.
if ((_M_reading || _M_writing)
&& __check_facet(_M_codecvt).encoding() == -1)
__testvalid = false;
else
{
if (_M_reading)
{
if (__check_facet(_M_codecvt).always_noconv())
{
if (_M_codecvt_tmp
&& !__check_facet(_M_codecvt_tmp).always_noconv())
__testvalid = this->seekoff(0, ios_base::cur, _M_mode)
!= pos_type(off_type(-1));
}
else
{
// External position corresponding to gptr().
_M_ext_next = _M_ext_buf
+ _M_codecvt->length(_M_state_last, _M_ext_buf, _M_ext_next,
this->gptr() - this->eback());
const streamsize __remainder = _M_ext_end - _M_ext_next;
if (__remainder)
__builtin_memmove(_M_ext_buf, _M_ext_next, __remainder);
_M_ext_next = _M_ext_buf;
_M_ext_end = _M_ext_buf + __remainder;
_M_set_buffer(-1);
_M_state_last = _M_state_cur = _M_state_beg;
}
}
else if (_M_writing && (__testvalid = _M_terminate_output()))
_M_set_buffer(-1);
}
}
if (__testvalid)
_M_codecvt = _M_codecvt_tmp;
else
_M_codecvt = 0;
}
// Inhibit implicit instantiations for required instantiations,
// which are defined via explicit instantiations elsewhere.
// NB: This syntax is a GNU extension.
#if _GLIBCXX_EXTERN_TEMPLATE
extern template class basic_filebuf<char>;
extern template class basic_ifstream<char>;
extern template class basic_ofstream<char>;
extern template class basic_fstream<char>;
#ifdef _GLIBCXX_USE_WCHAR_T
extern template class basic_filebuf<wchar_t>;
extern template class basic_ifstream<wchar_t>;
extern template class basic_ofstream<wchar_t>;
extern template class basic_fstream<wchar_t>;
#endif
#endif
_GLIBCXX_END_NAMESPACE
#endif