(C++) patch to type_info::operator==

[Jason Merrill]

Applied.  It seems wise to hide this implementation detail in libgcc
instead of making it part of the interface.

Mon Oct 12 02:03:25 1998  Jason Merrill  <jason@yorick.cygnus.com>

	* i386/t-cygwin32 (TARGET_LIBGCC2_CFLAGS): Define.

1998-10-12  Jason Merrill  <jason@yorick.cygnus.com>

	* inc/typeinfo: Add #pragma interface.
	(operator!=): Just call operator==.
	* tinfo.cc: Add #pragma implementation.
	(operator==): Move from inc/typeinfo and tinfo2.cc.
	Check __COMMON_UNRELIABLE instead of _WIN32.

Index: cp/tinfo.cc
===================================================================
RCS file: /egcs/carton/cvsfiles/egcs/gcc/cp/tinfo.cc,v
retrieving revision 1.3
diff -c -p -r1.3 tinfo.cc
*** cp/tinfo.cc	1998/05/13 10:00:45	1.3
--- cp/tinfo.cc	1998/10/12 09:11:16
***************
*** 25,30 ****
--- 25,32 ----
  // This exception does not however invalidate any other reasons why
  // the executable file might be covered by the GNU General Public License.
  
+ #pragma implementation "typeinfo"
+ 
  #include <stddef.h>
  #include "tinfo.h"
  #include "new"			// for placement new
***************
*** 36,41 ****
--- 38,60 ----
  std::type_info::
  ~type_info ()
  { }
+ 
+ #ifndef __COMMON_UNRELIABLE
+ bool type_info::
+ operator== (const type_info& arg) const
+ {
+   return &arg == this;
+ }
+ #else
+ // We can't rely on common symbols being shared between translation units
+ // under Windows.  Sigh.
+ 
+ bool type_info::
+ operator== (const type_info& arg) const
+ {
+   return fast_compare (name (), arg.name ()) == 0;
+ }
+ #endif
  
  extern "C" void
  __rtti_class (void *addr, const char *name,
Index: cp/tinfo2.cc
===================================================================
RCS file: /egcs/carton/cvsfiles/egcs/gcc/cp/tinfo2.cc,v
retrieving revision 1.5
diff -c -p -r1.5 tinfo2.cc
*** cp/tinfo2.cc	1998/05/08 02:06:19	1.5
--- cp/tinfo2.cc	1998/10/12 09:11:16
*************** type_info::before (const type_info &arg)
*** 49,68 ****
    return fast_compare (name (), arg.name ()) < 0;
  }
  
- #ifdef _WIN32
- bool type_info::
- operator== (const type_info& arg) const
- {
-   return fast_compare (name (), arg.name ()) == 0;
- }
- 
- bool type_info::
- operator!= (const type_info& arg) const
- {
-   return fast_compare (name (), arg.name ()) != 0;
- }
- #endif
- 
  // type info for pointer type.
  
  struct __pointer_type_info : public type_info {
--- 49,54 ----
Index: cp/inc/typeinfo
===================================================================
RCS file: /egcs/carton/cvsfiles/egcs/gcc/cp/inc/typeinfo,v
retrieving revision 1.4
diff -c -p -r1.4 typeinfo
*** cp/inc/typeinfo	1998/09/04 16:35:12	1.4
--- cp/inc/typeinfo	1998/10/12 09:11:16
***************
*** 4,9 ****
--- 4,11 ----
  #ifndef __TYPEINFO__
  #define __TYPEINFO__
  
+ #pragma interface "typeinfo"
+ 
  #include <exception>
  
  extern "C++" {
*************** public:
*** 32,53 ****
    bool operator!= (const type_info& arg) const;
  };
  
- // We can't rely on common symbols being shared between translation units
- // under Windows.  Sigh.
- 
- #ifndef _WIN32
- inline bool type_info::
- operator== (const type_info& arg) const
- {
-   return &arg == this;
- }
- 
  inline bool type_info::
  operator!= (const type_info& arg) const
  {
!   return &arg != this;
  }
- #endif
  
  class bad_cast : public exception {
  public:
--- 34,44 ----
    bool operator!= (const type_info& arg) const;
  };
  
  inline bool type_info::
  operator!= (const type_info& arg) const
  {
!   return !operator== (arg);
  }
  
  class bad_cast : public exception {
  public:
Index: config/i386/t-cygwin32
===================================================================
RCS file: /egcs/carton/cvsfiles/egcs/gcc/config/i386/t-cygwin32,v
retrieving revision 1.2
diff -c -p -r1.2 t-cygwin32
*** config/i386/t-cygwin32	1998/01/28 19:04:40	1.2
--- config/i386/t-cygwin32	1998/10/12 09:11:16
*************** CROSS_LIBGCC1 = libgcc1-asm.a
*** 3,8 ****
--- 3,12 ----
  LIB1ASMSRC = i386/cygwin32.asm
  LIB1ASMFUNCS = _chkstk
  
+ # We can't rely on common symbols being shared between translation units
+ # under Windows.
+ TARGET_LIBGCC2_CFLAGS = -D__COMMON_UNRELIABLE
+ 
  # cygwin32 always has a limits.h, but, depending upon how we are doing
  # the build, it may not be installed yet.
  LIMITS_H_TEST = true