* iomanip.h: Use __extension__ for `extern' explicit template
instantiations.
* sinst.cc: Don't explicitly instantiation string_char_traits<char>.
* cinst.cc: Likewiwse, for complex<float>, complex<double>,
complex<long double>.
* extend.texi: Remove description of extension to explicit
instantiation that is now endorsed by standard C++.
* decl2.c (grok_array_decl): Add comment.
(mark_used): Don't instantiate an explicit instantiation.
* friend.c (make_friend_class): Remove bogus comment. Fix check
for partial specializations.
* pt.c (check_explicit_specialization): Don't
SET_DECL_EXPLICIT_INSTANTIATION here.
(mark_decl_instantiated): Or here.
(do_decl_instantiation): Do it here, instead. Add checks for
duplicate explicit instantiations, etc. Tidy.
(do_type_instantiation): Likewise.
(instantiate_decl): Improve comments. Complain about explicit
instantiations where no definition is available.
* cp-tree.h (ansi_null_node): Remove.
* call.c (build_over_call): Warn about converting NULL to an
arithmetic type.
* cvt.c (build_expr_type_conversion): Likewise. Use
null_ptr_cst_p instead of expanding it inline.
* decl.c (ansi_null_node): Remove.
(init_decl_processing): Make null_node always have integral type.
* except.c (build_throw): Warn about converting NULL to an
arithmetic type.
* lex.c (init_parse): Remove handling of ansi_null_node.
* pt.c (type_unification_real): Don't convert NULL to void* type.
* typeck.c (build_binary_op_nodefault): Fix NULL warnings.
(convert_for_assignment): Warn about converting NULL to an
arithmetic type.
(convert_for_initialization): Likewise.
From-SVN: r21915
* expr.h (profile_function_entry_libfunc, profile_function_exit_libfunc):
Declare new variables.
* optabs.c: Define them here.
(init_optabs): Initialize them.
* tree.h (struct tree_decl): New flag no_instrument_function_entry_exit.
(DECL_NO_INSTRUMENT_FUNCTION_ENTRY_EXIT): New accessor macro.
* c-decl.c (duplicate_decls): Merge it.
* c-common.c (enum attrs): New value A_NO_INSTRUMENT_FUNCTION.
(init_attributes): Use it for "no_instrument_function".
(decl_attributes): Handle it, for functions that have not yet been compiled.
Set decl flag.
* flags.h (flag_instrument_function_entry_exit): Declare new variable.
* toplev.c (flag_instrument_function_entry_exit): Define it here.
(f_options): New option "instrument-functions".
* function.h (struct function): New field instrument_entry_exit.
* function.c (current_function_instrument_entry_exit): New variable.
(push_function_context_to, pop_function_context_from): Save and restore.
(expand_function_start): Set current_ variable, maybe emit return label and
entry profile call.
(expand_function_end): Maybe emit exit profile call.
Testsuite:
* gcc.c-torture/special/eeprof-1.c: New test, for -finstrument-functions.
* gcc.c-torture/special/special.exp: Run it.
From-SVN: r21495
* c-common.c (decl_attributes, record_function_format,
check_format_info, init_function_format_info):
Add support for strftime format checking.
(enum format_type): New type.
(record_function_format): Now static, and takes value of type
enum format_type instead of int.
(time_char_table): New constant.
(struct function_format_info): format_type member renamed from is_scan.
(check_format_info): Use `warning' rather than sprintf followed by
`warning', to avoid mishandling `%' in warnings.
Change `pedwarn' to `warning', since these warnings do not necessarily
mean the program does not conform to the C Standard, as the code
need not be executed.
* c-tree.h (record_function_format): Remove decl; no longer extern.
* extend.texi: Add documentation for strftime format checking.
From-SVN: r19151
