freebsd-nq/contrib/libcxxrt/typeinfo.cc
David Chisnall 7a98470824 Import libc++ / libcxxrt into base. Not build by default yet (use
MK_LIBCPLUSPLUS=yes to enable).  This is a work-in-progress.  It works for
me, but is not guaranteed to work for anyone else and may eat your dog.

To build C++ using libc++, add -stdlib=libc++ to your CXX and LD flags.

Bug reports welcome, bug fixes even more welcome...

Approved by:	dim (mentor)
2011-11-25 20:59:04 +00:00

84 lines
2.2 KiB
C++

#include "typeinfo.h"
#include <string.h>
#include <stdlib.h>
#include <stdio.h>
using std::type_info;
type_info::~type_info() {}
bool type_info::operator==(const type_info &other) const
{
return __type_name == other.__type_name;
}
bool type_info::operator!=(const type_info &other) const
{
return __type_name != other.__type_name;
}
bool type_info::before(const type_info &other) const
{
return __type_name < other.__type_name;
}
const char* type_info::name() const
{
return __type_name;
}
type_info::type_info (const type_info& rhs)
{
__type_name = rhs.__type_name;
}
type_info& type_info::operator= (const type_info& rhs)
{
return *new type_info(rhs);
}
ABI_NAMESPACE::__fundamental_type_info::~__fundamental_type_info() {}
ABI_NAMESPACE::__array_type_info::~__array_type_info() {}
ABI_NAMESPACE::__function_type_info::~__function_type_info() {}
ABI_NAMESPACE::__enum_type_info::~__enum_type_info() {}
ABI_NAMESPACE::__class_type_info::~__class_type_info() {}
ABI_NAMESPACE::__si_class_type_info::~__si_class_type_info() {}
ABI_NAMESPACE::__vmi_class_type_info::~__vmi_class_type_info() {}
ABI_NAMESPACE::__pbase_type_info::~__pbase_type_info() {}
ABI_NAMESPACE::__pointer_type_info::~__pointer_type_info() {}
ABI_NAMESPACE::__pointer_to_member_type_info::~__pointer_to_member_type_info() {}
// From libelftc
extern "C" char *__cxa_demangle_gnu3(const char *);
extern "C" char* __cxa_demangle(const char* mangled_name,
char* buf,
size_t* n,
int* status)
{
// TODO: We should probably just be linking against libelf-tc, rather than
// copying their code. This requires them to do an actual release,
// however, and for our changes to be pushed upstream. We also need to
// call a different demangling function here depending on the ABI (e.g.
// ARM).
char *demangled = __cxa_demangle_gnu3(mangled_name);
if (NULL != demangled)
{
size_t len = strlen(demangled);
buf = (char*)realloc(buf, len+1);
if (0 != buf)
{
memcpy(buf, demangled, len);
buf[len] = 0;
*n = len;
*status = 0;
}
else
{
*status = -1;
}
free(demangled);
}
else
{
*status = -2;
return NULL;
}
return buf;
}