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cxxabi.h: Remove duplicated and useless public and private keywords in class declarations.

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2004-05-22  Benjamin Kosnik  <bkoz@redhat.com>

	* libsupc++/cxxabi.h: Remove duplicated and useless public and
        private keywords in class declarations. Format. Use
        stddef.h. Expose declarations to "C" compilation.
        * libsupc++/tinfo.cc (__upcast_result): Add copy constructor and
        assignment operator.
        (__dyncast_result): Same.
        * libsupc++/vec.cc (uncatch_exception): Same, use member
        initialization list.

From-SVN: r82147
This commit is contained in:
Benjamin Kosnik 2004-05-22 21:07:28 +00:00 committed by Benjamin Kosnik
parent 8e657c46b4
commit 52ceb03971
4 changed files with 486 additions and 476 deletions
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11
libstdc++-v3/ChangeLog
View File

@ -1,3 +1,14 @@
2004-05-22 Benjamin Kosnik <bkoz@redhat.com>
* libsupc++/cxxabi.h: Remove duplicated and useless public and
private keywords in class declarations. Format. Use
stddef.h. Expose declarations to "C" compilation.
* libsupc++/tinfo.cc (__upcast_result): Add copy constructor and
assignment operator.
(__dyncast_result): Same.
* libsupc++/vec.cc (uncatch_exception): Same, use member
initialization list.
2004-05-22 Benjamin Kosnik <bkoz@redhat.com>
* testsuite/abi_check.cc: Add unistd.h.

906
libstdc++-v3/libsupc++/cxxabi.h
View File

@ -1,6 +1,6 @@
// new abi support -*- C++ -*-
// Copyright (C) 2000, 2002, 2003 Free Software Foundation, Inc.
// Copyright (C) 2000, 2002, 2003, 2004 Free Software Foundation, Inc.
//
// This file is part of GCC.
//
@ -42,517 +42,487 @@
#ifndef _CXXABI_H
#define _CXXABI_H 1
#ifdef __cplusplus
#include <stddef.h>
// We use the compiler builtins __SIZE_TYPE__ and __PTRDIFF_TYPE__ instead of
// std::size_t and std::ptrdiff_t respectively. This makes us independent of
// the conformance level of <cstddef> and whether -fhonor-std was supplied.
// <cstddef> is not currently available during compiler building anyway.
// Including <stddef.h> would be wrong, as that would rudely place size_t in
// the global namespace.
#ifdef __cplusplus
namespace __cxxabiv1
{
extern "C"
{
#endif
// Allocate array.
void*
__cxa_vec_new(size_t __element_count, size_t __element_size,
size_t __padding_size, void (*__constructor) (void*),
void (*__destructor) (void*));
void*
__cxa_vec_new2(size_t __element_count, size_t __element_size,
size_t __padding_size, void (*__constructor) (void*),
void (*__destructor) (void*), void *(*__alloc) (size_t),
void (*__dealloc) (void*));
void*
__cxa_vec_new3(size_t __element_count, size_t __element_size,
size_t __padding_size, void (*__constructor) (void*),
void (*__destructor) (void*), void *(*__alloc) (size_t),
void (*__dealloc) (void*, size_t));
// Construct array.
void
__cxa_vec_ctor(void* __array_address, size_t __element_count,
size_t __element_size, void (*__constructor) (void*),
void (*__destructor) (void*));
void
__cxa_vec_cctor(void* dest_array, void* src_array, size_t element_count,
size_t element_size, void (*constructor) (void*, void*),
void (*destructor) (void*));
// Destruct array.
void
__cxa_vec_dtor(void* __array_address, size_t __element_count,
size_t __element_size, void (*__destructor) (void*));
void
__cxa_vec_cleanup(void* __array_address, size_t __element_count,
size_t __element_size, void (*__destructor) (void*));
// Destruct and release array.
void
__cxa_vec_delete(void* __array_address, size_t __element_size,
size_t __padding_size, void (*__destructor) (void*));
void
__cxa_vec_delete2(void* __array_address, size_t __element_size,
size_t __padding_size, void (*__destructor) (void*),
void (*__dealloc) (void*));
void
__cxa_vec_delete3(void* __array_address, size_t __element_size,
size_t __padding_size, void (*__destructor) (void*),
void (*__dealloc) (void*, size_t));
// The ABI requires a 64-bit type.
__extension__ typedef int __guard __attribute__((mode (__DI__)));
int
__cxa_guard_acquire(__guard*);
void
__cxa_guard_release(__guard*);
void
__cxa_guard_abort(__guard*);
// Pure virtual functions.
void
__cxa_pure_virtual(void);
// Exception handling.
void
__cxa_bad_cast();
void
__cxa_bad_typeid();
// DSO destruction.
int
__cxa_atexit(void (*)(void*), void*, void*);
int
__cxa_finalize(void*);
// Demangling routines.
char*
__cxa_demangle(const char* __mangled_name, char* __output_buffer,
size_t* __length, int* __status);
#ifdef __cplusplus
}
} // namespace __cxxabiv1
#endif
#ifdef __cplusplus
#include <typeinfo>
namespace __cxxabiv1
{
/* type information for int, float etc */
class __fundamental_type_info
: public std::type_info
{
public:
virtual ~__fundamental_type_info ();
public:
explicit __fundamental_type_info (const char *__n)
: std::type_info (__n)
{ }
};
/* type information for array objects */
class __array_type_info
: public std::type_info
{
/* abi defined member functions */
protected:
virtual ~__array_type_info ();
public:
explicit __array_type_info (const char *__n)
: std::type_info (__n)
{ }
};
/* type information for functions (both member and non-member) */
class __function_type_info
: public std::type_info
{
/* abi defined member functions */
public:
virtual ~__function_type_info ();
public:
explicit __function_type_info (const char *__n)
: std::type_info (__n)
{ }
/* implementation defined member functions */
protected:
virtual bool __is_function_p () const;
};
/* type information for enumerations */
class __enum_type_info
: public std::type_info
{
/* abi defined member functions */
public:
virtual ~__enum_type_info ();
public:
explicit __enum_type_info (const char *__n)
: std::type_info (__n)
{ }
};
/* common type information for simple pointers and pointers to member */
class __pbase_type_info
: public std::type_info
{
/* abi defined member variables */
public:
unsigned int __flags; /* qualification of the target object */
const std::type_info *__pointee; /* type of pointed to object */
/* abi defined member functions */
public:
virtual ~__pbase_type_info ();
public:
explicit __pbase_type_info (const char *__n,
int __quals,
const std::type_info *__type)
: std::type_info (__n), __flags (__quals), __pointee (__type)
{ }
/* implementation defined types */
public:
enum __masks {
__const_mask = 0x1,
__volatile_mask = 0x2,
__restrict_mask = 0x4,
__incomplete_mask = 0x8,
__incomplete_class_mask = 0x10
};
/* implementation defined member functions */
protected:
virtual bool __do_catch (const std::type_info *__thr_type,
void **__thr_obj,
unsigned __outer) const;
protected:
inline virtual bool __pointer_catch (const __pbase_type_info *__thr_type,
void **__thr_obj,
unsigned __outer) const;
};
/* type information for simple pointers */
class __pointer_type_info
: public __pbase_type_info
{
/* abi defined member functions */
public:
virtual ~__pointer_type_info ();
public:
explicit __pointer_type_info (const char *__n,
int __quals,
const std::type_info *__type)
: __pbase_type_info (__n, __quals, __type)
{ }
/* implementation defined member functions */
protected:
virtual bool __is_pointer_p () const;
protected:
virtual bool __pointer_catch (const __pbase_type_info *__thr_type,
void **__thr_obj,
unsigned __outer) const;
};
class __class_type_info;
/* type information for a pointer to member variable */
class __pointer_to_member_type_info
: public __pbase_type_info
{
/* abi defined member variables */
public:
__class_type_info *__context; /* class of the member */
/* abi defined member functions */
public:
virtual ~__pointer_to_member_type_info ();
public:
explicit __pointer_to_member_type_info (const char *__n,
int __quals,
const std::type_info *__type,
__class_type_info *__klass)
: __pbase_type_info (__n, __quals, __type), __context (__klass)
{ }
/* implementation defined member functions */
protected:
virtual bool __pointer_catch (const __pbase_type_info *__thr_type,
void **__thr_obj,
unsigned __outer) const;
};
/* helper class for __vmi_class_type */
class __base_class_type_info
{
/* abi defined member variables */
public:
const __class_type_info* __base_type; /* base class type */
long __offset_flags; /* offset and info */
/* implementation defined types */
public:
enum __offset_flags_masks {
__virtual_mask = 0x1,
__public_mask = 0x2,
__hwm_bit = 2,
__offset_shift = 8 /* bits to shift offset by */
};
/* implementation defined member functions */
public:
bool __is_virtual_p () const
{ return __offset_flags & __virtual_mask; }
bool __is_public_p () const
{ return __offset_flags & __public_mask; }
__PTRDIFF_TYPE__ __offset () const
{
// This shift, being of a signed type, is implementation defined. GCC
// implements such shifts as arithmetic, which is what we want.
return static_cast<__PTRDIFF_TYPE__> (__offset_flags) >> __offset_shift;
}
};
/* type information for a class */
class __class_type_info
: public std::type_info
{
/* abi defined member functions */
public:
virtual ~__class_type_info ();
public:
explicit __class_type_info (const char *__n)
: type_info (__n)
{ }
/* implementation defined types */
public:
/* sub_kind tells us about how a base object is contained within a derived
object. We often do this lazily, hence the UNKNOWN value. At other times
we may use NOT_CONTAINED to mean not publicly contained. */
enum __sub_kind
// Type information for int, float etc.
class __fundamental_type_info : public std::type_info
{
__unknown = 0, /* we have no idea */
__not_contained, /* not contained within us (in some */
/* circumstances this might mean not contained */
/* publicly) */
__contained_ambig, /* contained ambiguously */
public:
explicit
__fundamental_type_info(const char* __n) : std::type_info(__n) { }
__contained_virtual_mask = __base_class_type_info::__virtual_mask, /* via a virtual path */
__contained_public_mask = __base_class_type_info::__public_mask, /* via a public path */
__contained_mask = 1 << __base_class_type_info::__hwm_bit, /* contained within us */
__contained_private = __contained_mask,
__contained_public = __contained_mask | __contained_public_mask
virtual
~__fundamental_type_info();
};
public:
struct __upcast_result;
struct __dyncast_result;
// Type information for array objects.
class __array_type_info : public std::type_info
{
public:
explicit
__array_type_info(const char* __n) : std::type_info(__n) { }
/* implementation defined member functions */
protected:
virtual bool __do_upcast (const __class_type_info *__dst_type, void **__obj_ptr) const;
protected:
virtual bool __do_catch (const type_info *__thr_type, void **__thr_obj,
unsigned __outer) const;
public:
/* Helper for upcast. See if DST is us, or one of our bases. */
/* Return false if not found, true if found. */
virtual bool __do_upcast (const __class_type_info *__dst,
const void *__obj,
__upcast_result &__restrict __result) const;
public:
/* Indicate whether SRC_PTR of type SRC_TYPE is contained publicly within
OBJ_PTR. OBJ_PTR points to a base object of our type, which is the
destination type. SRC2DST indicates how SRC objects might be contained
within this type. If SRC_PTR is one of our SRC_TYPE bases, indicate the
virtuality. Returns not_contained for non containment or private
containment. */
inline __sub_kind __find_public_src (__PTRDIFF_TYPE__ __src2dst,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__src_ptr) const;
public:
/* dynamic cast helper. ACCESS_PATH gives the access from the most derived
object to this base. DST_TYPE indicates the desired type we want. OBJ_PTR
points to a base of our type within the complete object. SRC_TYPE
indicates the static type started from and SRC_PTR points to that base
within the most derived object. Fill in RESULT with what we find. Return
true if we have located an ambiguous match. */
virtual bool __do_dyncast (__PTRDIFF_TYPE__ __src2dst,
__sub_kind __access_path,
const __class_type_info *__dst_type,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__src_ptr,
__dyncast_result &__result) const;
public:
/* Helper for find_public_subobj. SRC2DST indicates how SRC_TYPE bases are
inherited by the type started from -- which is not necessarily the
current type. The current type will be a base of the destination type.
OBJ_PTR points to the current base. */
virtual __sub_kind __do_find_public_src (__PTRDIFF_TYPE__ __src2dst,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__src_ptr) const;
};
/* type information for a class with a single non-virtual base */
class __si_class_type_info
: public __class_type_info
{
/* abi defined member variables */
public:
const __class_type_info *__base_type;
/* abi defined member functions */
public:
virtual ~__si_class_type_info ();
public:
explicit __si_class_type_info (const char *__n,
const __class_type_info *__base)
: __class_type_info (__n), __base_type (__base)
{ }
/* implementation defined member functions */
protected:
virtual bool __do_dyncast (__PTRDIFF_TYPE__ __src2dst,
__sub_kind __access_path,
const __class_type_info *__dst_type,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__src_ptr,
__dyncast_result &__result) const;
virtual __sub_kind __do_find_public_src (__PTRDIFF_TYPE__ __src2dst,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__sub_ptr) const;
virtual bool __do_upcast (const __class_type_info *__dst,
const void *__obj,
__upcast_result &__restrict __result) const;
};
/* type information for a class with multiple and/or virtual bases */
class __vmi_class_type_info : public __class_type_info {
/* abi defined member variables */
public:
unsigned int __flags; /* details about the class hierarchy */
unsigned int __base_count; /* number of direct bases */
__base_class_type_info __base_info[1]; /* array of bases */
/* The array of bases uses the trailing array struct hack
so this class is not constructable with a normal constructor. It is
internally generated by the compiler. */
/* abi defined member functions */
public:
virtual ~__vmi_class_type_info ();
public:
explicit __vmi_class_type_info (const char *__n,
int ___flags)
: __class_type_info (__n), __flags (___flags), __base_count (0)
{ }
/* implementation defined types */
public:
enum __flags_masks {
__non_diamond_repeat_mask = 0x1, /* distinct instance of repeated base */
__diamond_shaped_mask = 0x2, /* diamond shaped multiple inheritance */
__flags_unknown_mask = 0x10
virtual
~__array_type_info();
};
/* implementation defined member functions */
protected:
virtual bool __do_dyncast (__PTRDIFF_TYPE__ __src2dst,
__sub_kind __access_path,
const __class_type_info *__dst_type,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__src_ptr,
__dyncast_result &__result) const;
virtual __sub_kind __do_find_public_src (__PTRDIFF_TYPE__ __src2dst,
const void *__obj_ptr,
const __class_type_info *__src_type,
const void *__src_ptr) const;
virtual bool __do_upcast (const __class_type_info *__dst,
const void *__obj,
__upcast_result &__restrict __result) const;
};
// Type information for functions (both member and non-member).
class __function_type_info : public std::type_info
{
public:
explicit
__function_type_info(const char* __n) : std::type_info(__n) { }
/* dynamic cast runtime */
extern "C"
void *__dynamic_cast (const void *__src_ptr, /* object started from */
const __class_type_info *__src_type, /* static type of object */
const __class_type_info *__dst_type, /* desired target type */
__PTRDIFF_TYPE__ __src2dst); /* how src and dst are related */
virtual
~__function_type_info();
/* src2dst has the following possible values
>= 0: src_type is a unique public non-virtual base of dst_type
dst_ptr + src2dst == src_ptr
-1: unspecified relationship
-2: src_type is not a public base of dst_type
-3: src_type is a multiple public non-virtual base of dst_type */
protected:
// Implementation defined member function.
virtual bool
__is_function_p() const;
};
/* array ctor/dtor routines */
// Type information for enumerations.
class __enum_type_info : public std::type_info
{
public:
explicit
__enum_type_info(const char* __n) : std::type_info(__n) { }
/* allocate and construct array */
extern "C"
void *__cxa_vec_new (__SIZE_TYPE__ __element_count,
__SIZE_TYPE__ __element_size,
__SIZE_TYPE__ __padding_size,
void (*__constructor) (void *),
void (*__destructor) (void *));
virtual
~__enum_type_info();
};
extern "C"
void *__cxa_vec_new2 (__SIZE_TYPE__ __element_count,
__SIZE_TYPE__ __element_size,
__SIZE_TYPE__ __padding_size,
void (*__constructor) (void *),
void (*__destructor) (void *),
void *(*__alloc) (__SIZE_TYPE__),
void (*__dealloc) (void *));
// Common type information for simple pointers and pointers to member.
class __pbase_type_info : public std::type_info
{
public:
unsigned int __flags; // Qualification of the target object.
const std::type_info* __pointee; // Type of pointed to object.
extern "C"
void *__cxa_vec_new3 (__SIZE_TYPE__ __element_count,
__SIZE_TYPE__ __element_size,
__SIZE_TYPE__ __padding_size,
void (*__constructor) (void *),
void (*__destructor) (void *),
void *(*__alloc) (__SIZE_TYPE__),
void (*__dealloc) (void *, __SIZE_TYPE__));
explicit
__pbase_type_info(const char* __n, int __quals,
const std::type_info* __type)
: std::type_info(__n), __flags(__quals), __pointee(__type)
{ }
/* construct array */
extern "C"
void __cxa_vec_ctor (void *__array_address,
__SIZE_TYPE__ __element_count,
__SIZE_TYPE__ __element_size,
void (*__constructor) (void *),
void (*__destructor) (void *));
virtual
~__pbase_type_info();
extern "C"
void __cxa_vec_cctor (void *dest_array,
void *src_array,
__SIZE_TYPE__ element_count,
__SIZE_TYPE__ element_size,
void (*constructor) (void *, void *),
void (*destructor) (void *));
// Implementation defined type.
enum __masks
{
__const_mask = 0x1,
__volatile_mask = 0x2,
__restrict_mask = 0x4,
__incomplete_mask = 0x8,
__incomplete_class_mask = 0x10
};
/* destruct array */
extern "C"
void __cxa_vec_dtor (void *__array_address,
__SIZE_TYPE__ __element_count,
__SIZE_TYPE__ __element_size,
void (*__destructor) (void *));
protected:
__pbase_type_info(const __pbase_type_info&);
/* destruct array */
extern "C"
void __cxa_vec_cleanup (void *__array_address,
__SIZE_TYPE__ __element_count,
__SIZE_TYPE__ __element_size,
void (*__destructor) (void *));
__pbase_type_info&
operator=(const __pbase_type_info&);
/* destruct and release array */
extern "C"
void __cxa_vec_delete (void *__array_address,
__SIZE_TYPE__ __element_size,
__SIZE_TYPE__ __padding_size,
void (*__destructor) (void *));
// Implementation defined member functions.
virtual bool
__do_catch(const std::type_info* __thr_type, void** __thr_obj,
unsigned int __outer) const;
extern "C"
void __cxa_vec_delete2 (void *__array_address,
__SIZE_TYPE__ __element_size,
__SIZE_TYPE__ __padding_size,
void (*__destructor) (void *),
void (*__dealloc) (void *));
inline virtual bool
__pointer_catch(const __pbase_type_info* __thr_type, void** __thr_obj,
unsigned __outer) const;
};
extern "C"
void __cxa_vec_delete3 (void *__array_address,
__SIZE_TYPE__ __element_size,
__SIZE_TYPE__ __padding_size,
void (*__destructor) (void *),
void (*__dealloc) (void *, __SIZE_TYPE__));
// Type information for simple pointers.
class __pointer_type_info : public __pbase_type_info
{
public:
explicit
__pointer_type_info(const char* __n, int __quals,
const std::type_info* __type)
: __pbase_type_info (__n, __quals, __type) { }
/* guard variables */
/* The ABI requires a 64-bit type. */
__extension__ typedef int __guard __attribute__((mode (__DI__)));
virtual
~__pointer_type_info();
extern "C"
int __cxa_guard_acquire (__guard *);
protected:
// Implementation defined member functions.
virtual bool
__is_pointer_p() const;
extern "C"
void __cxa_guard_release (__guard *);
virtual bool
__pointer_catch(const __pbase_type_info* __thr_type, void** __thr_obj,
unsigned __outer) const;
};
extern "C"
void __cxa_guard_abort (__guard *);
class __class_type_info;
/* pure virtual functions */
// Type information for a pointer to member variable.
class __pointer_to_member_type_info : public __pbase_type_info
{
public:
__class_type_info* __context; // Class of the member.
extern "C" void
__cxa_pure_virtual (void);
explicit
__pointer_to_member_type_info(const char* __n, int __quals,
const std::type_info* __type,
__class_type_info* __klass)
: __pbase_type_info(__n, __quals, __type), __context(__klass) { }
/* exception handling */
virtual
~__pointer_to_member_type_info();
extern "C" void
__cxa_bad_cast ();
protected:
__pointer_to_member_type_info(const __pointer_to_member_type_info&);
extern "C" void
__cxa_bad_typeid ();
__pointer_to_member_type_info&
operator=(const __pointer_to_member_type_info&);
/* DSO destruction */
// Implementation defined member function.
virtual bool
__pointer_catch(const __pbase_type_info* __thr_type, void** __thr_obj,
unsigned __outer) const;
};
extern "C" int
__cxa_atexit (void (*)(void *), void *, void *);
// Helper class for __vmi_class_type.
class __base_class_type_info
{
public:
const __class_type_info* __base_type; // Base class type.
long __offset_flags; // Offset and info.
extern "C" int
__cxa_finalize (void *);
enum __offset_flags_masks
{
__virtual_mask = 0x1,
__public_mask = 0x2,
__hwm_bit = 2,
__offset_shift = 8 // Bits to shift offset.
};
/* demangling routines */
// Implementation defined member functions.
bool
__is_virtual_p() const
{ return __offset_flags & __virtual_mask; }
extern "C"
char *__cxa_demangle (const char *__mangled_name,
char *__output_buffer,
__SIZE_TYPE__ *__length,
int *__status);
bool
__is_public_p() const
{ return __offset_flags & __public_mask; }
// Returns the type_info for the currently handled exception [15.3/8], or
// null if there is none.
extern "C"
std::type_info *__cxa_current_exception_type ();
ptrdiff_t
__offset() const
{
// This shift, being of a signed type, is implementation
// defined. GCC implements such shifts as arithmetic, which is
// what we want.
return static_cast<ptrdiff_t>(__offset_flags) >> __offset_shift;
}
};
} /* namespace __cxxabiv1 */
// Type information for a class.
class __class_type_info : public std::type_info
{
public:
explicit
__class_type_info (const char *__n) : type_info(__n) { }
/* User programs should use the alias `abi'. */
virtual
~__class_type_info ();
// Implementation defined types.
// The type sub_kind tells us about how a base object is contained
// within a derived object. We often do this lazily, hence the
// UNKNOWN value. At other times we may use NOT_CONTAINED to mean
// not publicly contained.
enum __sub_kind
{
// We have no idea.
__unknown = 0,
// Not contained within us (in some circumstances this might
// mean not contained publicly)
__not_contained,
// Contained ambiguously.
__contained_ambig,
// Via a virtual path.
__contained_virtual_mask = __base_class_type_info::__virtual_mask,
// Via a public path.
__contained_public_mask = __base_class_type_info::__public_mask,
// Contained within us.
__contained_mask = 1 << __base_class_type_info::__hwm_bit,
__contained_private = __contained_mask,
__contained_public = __contained_mask | __contained_public_mask
};
struct __upcast_result;
struct __dyncast_result;
protected:
// Implementation defined member functions.
virtual bool
__do_upcast(const __class_type_info* __dst_type, void**__obj_ptr) const;
virtual bool
__do_catch(const type_info* __thr_type, void** __thr_obj,
unsigned __outer) const;
public:
// Helper for upcast. See if DST is us, or one of our bases.
// Return false if not found, true if found.
virtual bool
__do_upcast(const __class_type_info* __dst, const void* __obj,
__upcast_result& __restrict __result) const;
// Indicate whether SRC_PTR of type SRC_TYPE is contained publicly
// within OBJ_PTR. OBJ_PTR points to a base object of our type,
// which is the destination type. SRC2DST indicates how SRC
// objects might be contained within this type. If SRC_PTR is one
// of our SRC_TYPE bases, indicate the virtuality. Returns
// not_contained for non containment or private containment.
inline __sub_kind
__find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
const __class_type_info* __src_type,
const void* __src_ptr) const;
// Helper for dynamic cast. ACCESS_PATH gives the access from the
// most derived object to this base. DST_TYPE indicates the
// desired type we want. OBJ_PTR points to a base of our type
// within the complete object. SRC_TYPE indicates the static type
// started from and SRC_PTR points to that base within the most
// derived object. Fill in RESULT with what we find. Return true
// if we have located an ambiguous match.
virtual bool
__do_dyncast(ptrdiff_t __src2dst, __sub_kind __access_path,
const __class_type_info* __dst_type, const void* __obj_ptr,
const __class_type_info* __src_type, const void* __src_ptr,
__dyncast_result& __result) const;
// Helper for find_public_subobj. SRC2DST indicates how SRC_TYPE
// bases are inherited by the type started from -- which is not
// necessarily the current type. The current type will be a base
// of the destination type. OBJ_PTR points to the current base.
virtual __sub_kind
__do_find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
const __class_type_info* __src_type,
const void* __src_ptr) const;
};
// Type information for a class with a single non-virtual base.
class __si_class_type_info : public __class_type_info
{
public:
const __class_type_info* __base_type;
explicit
__si_class_type_info(const char *__n, const __class_type_info *__base)
: __class_type_info(__n), __base_type(__base) { }
virtual
~__si_class_type_info();
protected:
__si_class_type_info(const __si_class_type_info&);
__si_class_type_info&
operator=(const __si_class_type_info&);
// Implementation defined member functions.
virtual bool
__do_dyncast(ptrdiff_t __src2dst, __sub_kind __access_path,
const __class_type_info* __dst_type, const void* __obj_ptr,
const __class_type_info* __src_type, const void* __src_ptr,
__dyncast_result& __result) const;
virtual __sub_kind
__do_find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
const __class_type_info* __src_type,
const void* __sub_ptr) const;
virtual bool
__do_upcast(const __class_type_info*__dst, const void*__obj,
__upcast_result& __restrict __result) const;
};
// Type information for a class with multiple and/or virtual bases.
class __vmi_class_type_info : public __class_type_info
{
public:
unsigned int __flags; // Details about the class hierarchy.
unsigned int __base_count; // Dumber of direct bases.
// The array of bases uses the trailing array struct hack so this
// class is not constructable with a normal constructor. It is
// internally generated by the compiler.
__base_class_type_info __base_info[1]; // Array of bases.
explicit
__vmi_class_type_info(const char* __n, int ___flags)
: __class_type_info(__n), __flags(___flags), __base_count(0) { }
virtual
~__vmi_class_type_info();
// Implementation defined types.
enum __flags_masks
{
__non_diamond_repeat_mask = 0x1, // Distinct instance of repeated base.
__diamond_shaped_mask = 0x2, // Diamond shaped multiple inheritance.
__flags_unknown_mask = 0x10
};
protected:
// Implementation defined member functions.
virtual bool
__do_dyncast(ptrdiff_t __src2dst, __sub_kind __access_path,
const __class_type_info* __dst_type, const void* __obj_ptr,
const __class_type_info* __src_type, const void* __src_ptr,
__dyncast_result& __result) const;
virtual __sub_kind
__do_find_public_src(ptrdiff_t __src2dst, const void* __obj_ptr,
const __class_type_info* __src_type,
const void* __src_ptr) const;
virtual bool
__do_upcast(const __class_type_info* __dst, const void* __obj,
__upcast_result& __restrict __result) const;
};
// Dynamic cast runtime.
// src2dst has the following possible values
// >-1: src_type is a unique public non-virtual base of dst_type
// dst_ptr + src2dst == src_ptr
// -1: unspecified relationship
// -2: src_type is not a public base of dst_type
// -3: src_type is a multiple public non-virtual base of dst_type
extern "C" void*
__dynamic_cast(const void* __src_ptr, // Starting object.
const __class_type_info* __src_type, // Static type of object.
const __class_type_info* __dst_type, // Desired target type.
ptrdiff_t __src2dst); // How src and dst are related.
// Returns the type_info for the currently handled exception [15.3/8], or
// null if there is none.
extern "C" std::type_info*
__cxa_current_exception_type();
} // namespace __cxxabiv1
// User programs should use the alias `abi'.
namespace abi = __cxxabiv1;
#else
#endif /* __cplusplus */
#endif // __cplusplus
#endif /* __CXXABI_H */
#endif // __CXXABI_H

27
libstdc++-v3/libsupc++/tinfo.cc
View File

@ -200,10 +200,28 @@ struct __class_type_info::__upcast_result
// if in vbase the __class_type_info of vbase
// if a non-virtual base then 1
// else NULL
public:
__upcast_result (int d)
:dst_ptr (NULL), part2dst (__unknown), src_details (d), base_type (NULL)
{}
explicit
__upcast_result(const __upcast_result& r)
: dst_ptr(r.dst_ptr), part2dst(r.part2dst), src_details(r.src_details),
base_type(r.base_type)
{ }
__upcast_result&
operator=(const __upcast_result& r)
{
if (&r != this)
{
dst_ptr = r.dst_ptr;
part2dst = r.part2dst;
src_details = r.src_details;
base_type = r.base_type;
}
return *this;
}
};
// __dyncast_result is used to hold information during traversal of a class
@ -216,12 +234,17 @@ struct __class_type_info::__dyncast_result
__sub_kind dst2src; // path from target to sub object
int whole_details; // details of the whole class hierarchy
public:
__dyncast_result (int details_ = __vmi_class_type_info::__flags_unknown_mask)
:dst_ptr (NULL), whole2dst (__unknown),
whole2src (__unknown), dst2src (__unknown),
whole_details (details_)
{}
protected:
__dyncast_result(const __dyncast_result&);
__dyncast_result&
operator=(const __dyncast_result&);
};
bool __class_type_info::

14
libstdc++-v3/libsupc++/vec.cc
View File

@ -1,6 +1,6 @@
// New abi Support -*- C++ -*-
// Copyright (C) 2000, 2001, 2003 Free Software Foundation, Inc.
// Copyright (C) 2000, 2001, 2003, 2004 Free Software Foundation, Inc.
//
// This file is part of GCC.
//
@ -42,13 +42,19 @@ namespace __cxxabiv1
{
struct uncatch_exception
{
uncatch_exception ();
uncatch_exception();
~uncatch_exception () { __cxa_begin_catch (&p->unwindHeader); }
__cxa_exception *p;
__cxa_exception* p;
private:
uncatch_exception&
operator=(const uncatch_exception&);
uncatch_exception(const uncatch_exception&);
};
uncatch_exception::uncatch_exception ()
uncatch_exception::uncatch_exception() : p(0)
{
__cxa_eh_globals *globals = __cxa_get_globals_fast ();