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00031 #ifndef _EXCEPTION_PTR_H
00032 #define _EXCEPTION_PTR_H
00033
00034 #pragma GCC visibility push(default)
00035
00036 #include <bits/c++config.h>
00037 #include <bits/exception_defines.h>
00038
00039 #if !defined(_GLIBCXX_ATOMIC_BUILTINS_4)
00040 # error This platform does not support exception propagation.
00041 #endif
00042
00043 extern "C++" {
00044
00045 namespace std
00046 {
00047
00048
00049
00050
00051 namespace __exception_ptr
00052 {
00053 class exception_ptr;
00054 }
00055
00056 using __exception_ptr::exception_ptr;
00057
00058
00059
00060
00061
00062 exception_ptr current_exception() throw();
00063
00064
00065 void rethrow_exception(exception_ptr) __attribute__ ((__noreturn__));
00066
00067 namespace __exception_ptr
00068 {
00069
00070
00071
00072
00073 class exception_ptr
00074 {
00075 void* _M_exception_object;
00076
00077 explicit exception_ptr(void* __e) throw();
00078
00079 void _M_addref() throw();
00080 void _M_release() throw();
00081
00082 void *_M_get() const throw() __attribute__ ((__pure__));
00083
00084 friend exception_ptr std::current_exception() throw();
00085 friend void std::rethrow_exception(exception_ptr);
00086
00087 public:
00088 exception_ptr() throw();
00089
00090 exception_ptr(const exception_ptr&) throw();
00091
00092 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00093 exception_ptr(nullptr_t) throw()
00094 : _M_exception_object(0)
00095 { }
00096
00097 exception_ptr(exception_ptr&& __o) throw()
00098 : _M_exception_object(__o._M_exception_object)
00099 { __o._M_exception_object = 0; }
00100 #else
00101 typedef void (exception_ptr::*__safe_bool)();
00102
00103
00104 exception_ptr(__safe_bool) throw();
00105 #endif
00106
00107 exception_ptr&
00108 operator=(const exception_ptr&) throw();
00109
00110 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00111 exception_ptr&
00112 operator=(exception_ptr&& __o) throw()
00113 {
00114 exception_ptr(static_cast<exception_ptr&&>(__o)).swap(*this);
00115 return *this;
00116 }
00117 #endif
00118
00119 ~exception_ptr() throw();
00120
00121 void
00122 swap(exception_ptr&) throw();
00123
00124 #ifdef _GLIBCXX_EH_PTR_COMPAT
00125
00126 void _M_safe_bool_dummy() throw() __attribute__ ((__const__));
00127 bool operator!() const throw() __attribute__ ((__pure__));
00128 operator __safe_bool() const throw();
00129 #endif
00130
00131 #ifdef __GXX_EXPERIMENTAL_CXX0X__
00132 explicit operator bool() const
00133 { return _M_exception_object; }
00134 #endif
00135
00136 friend bool
00137 operator==(const exception_ptr&, const exception_ptr&) throw()
00138 __attribute__ ((__pure__));
00139
00140 const type_info*
00141 __cxa_exception_type() const throw() __attribute__ ((__pure__));
00142 };
00143
00144 bool
00145 operator==(const exception_ptr&, const exception_ptr&) throw()
00146 __attribute__ ((__pure__));
00147
00148 bool
00149 operator!=(const exception_ptr&, const exception_ptr&) throw()
00150 __attribute__ ((__pure__));
00151
00152 inline void
00153 swap(exception_ptr& __lhs, exception_ptr& __rhs)
00154 { __lhs.swap(__rhs); }
00155
00156 }
00157
00158
00159
00160 template<typename _Ex>
00161 exception_ptr
00162 copy_exception(_Ex __ex) throw()
00163 {
00164 __try
00165 {
00166 #ifdef __EXCEPTIONS
00167 throw __ex;
00168 #endif
00169 }
00170 __catch(...)
00171 {
00172 return current_exception();
00173 }
00174 }
00175
00176
00177
00178
00179 template<typename _Ex>
00180 exception_ptr
00181 make_exception_ptr(_Ex __ex) throw()
00182 { return std::copy_exception<_Ex>(__ex); }
00183
00184
00185 }
00186
00187 }
00188
00189 #pragma GCC visibility pop
00190
00191 #endif