--- /dev/null
+// <system_error> -*- C++ -*-
+
+// Copyright (C) 2007, 2008, 2009 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library. This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+// GNU General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file system_error
+ * This is a Standard C++ Library header.
+ */
+
+#ifndef _GLIBCXX_SYSTEM_ERROR
+#define _GLIBCXX_SYSTEM_ERROR 1
+
+#pragma GCC system_header
+
+#ifndef __GXX_EXPERIMENTAL_CXX0X__
+# include <c++0x_warning.h>
+#else
+
+#include <bits/c++config.h>
+#include <bits/error_constants.h>
+#include <iosfwd>
+#include <stdexcept>
+
+_GLIBCXX_BEGIN_NAMESPACE(std)
+
+ class error_code;
+ class error_condition;
+ class error_category;
+ class system_error;
+
+ /// is_error_code_enum
+ template<typename _Tp>
+ struct is_error_code_enum : public false_type { };
+
+ /// is_error_condition_enum
+ template<typename _Tp>
+ struct is_error_condition_enum : public false_type { };
+
+ template<>
+ struct is_error_condition_enum<errc>
+ : public true_type { };
+
+
+ /// error_category
+ class error_category
+ {
+ protected:
+ error_category() = default;
+
+ public:
+ virtual ~error_category() { }
+
+ error_category(const error_category&) = delete;
+ error_category& operator=(const error_category&) = delete;
+
+ virtual const char*
+ name() const = 0;
+
+ virtual string
+ message(int) const = 0;
+
+ virtual error_condition
+ default_error_condition(int __i) const;
+
+ virtual bool
+ equivalent(int __i, const error_condition& __cond) const;
+
+ virtual bool
+ equivalent(const error_code& __code, int __i) const;
+
+ bool
+ operator<(const error_category& __other) const
+ { return less<const error_category*>()(this, &__other); }
+
+ bool
+ operator==(const error_category& __other) const
+ { return this == &__other; }
+
+ bool
+ operator!=(const error_category& __other) const
+ { return this != &__other; }
+ };
+
+ // DR 890.
+ const error_category& system_category();
+ const error_category& generic_category();
+
+ error_code make_error_code(errc);
+
+ /// error_code
+ // Implementation-specific error identification
+ struct error_code
+ {
+ error_code()
+ : _M_value(0), _M_cat(&system_category()) { }
+
+ error_code(int __v, const error_category& __cat)
+ : _M_value(__v), _M_cat(&__cat) { }
+
+ template<typename _ErrorCodeEnum>
+ error_code(_ErrorCodeEnum __e,
+ typename enable_if<is_error_code_enum<_ErrorCodeEnum>::value>::type* = 0)
+ { *this = make_error_code(__e); }
+
+ void
+ assign(int __v, const error_category& __cat)
+ {
+ _M_value = __v;
+ _M_cat = &__cat;
+ }
+
+ void
+ clear()
+ { assign(0, system_category()); }
+
+ // DR 804.
+ template<typename _ErrorCodeEnum>
+ typename enable_if<is_error_code_enum<_ErrorCodeEnum>::value,
+ error_code&>::type
+ operator=(_ErrorCodeEnum __e)
+ { return *this = make_error_code(__e); }
+
+ int
+ value() const { return _M_value; }
+
+ const error_category&
+ category() const { return *_M_cat; }
+
+ error_condition
+ default_error_condition() const;
+
+ string
+ message() const
+ { return category().message(value()); }
+
+ // Safe bool idiom.
+ // explicit operator bool() const throw()
+ // { return _M_value != 0; }
+ typedef void (*__bool_type)();
+
+ static void __not_bool_type() { }
+
+ operator __bool_type() const
+ { return _M_value != 0 ? &__not_bool_type : false; }
+
+ // DR 804.
+ private:
+ int _M_value;
+ const error_category* _M_cat;
+ };
+
+ // 19.4.2.6 non-member functions
+ inline error_code
+ make_error_code(errc __e)
+ { return error_code(static_cast<int>(__e), generic_category()); }
+
+ inline bool
+ operator<(const error_code& __lhs, const error_code& __rhs)
+ {
+ return (__lhs.category() < __rhs.category()
+ || (__lhs.category() == __rhs.category()
+ && __lhs.value() < __rhs.value()));
+ }
+
+ template<typename _CharT, typename _Traits>
+ basic_ostream<_CharT, _Traits>&
+ operator<<(basic_ostream<_CharT, _Traits>& __os, const error_code& __e)
+ { return (__os << __e.category().name() << ':' << __e.value()); }
+
+ error_condition make_error_condition(errc);
+
+ /// error_condition
+ // Portable error identification
+ struct error_condition
+ {
+ error_condition()
+ : _M_value(0), _M_cat(&generic_category()) { }
+
+ error_condition(int __v, const error_category& __cat)
+ : _M_value(__v), _M_cat(&__cat) { }
+
+ template<typename _ErrorConditionEnum>
+ error_condition(_ErrorConditionEnum __e,
+ typename enable_if<is_error_condition_enum
+ <_ErrorConditionEnum>::value>::type* = 0)
+ { *this = make_error_condition(__e); }
+
+ void
+ assign(int __v, const error_category& __cat)
+ {
+ _M_value = __v;
+ _M_cat = &__cat;
+ }
+
+ // DR 804.
+ template<typename _ErrorConditionEnum>
+ typename enable_if<is_error_condition_enum
+ <_ErrorConditionEnum>::value, error_condition&>::type
+ operator=(_ErrorConditionEnum __e)
+ { return *this = make_error_condition(__e); }
+
+ void
+ clear()
+ { assign(0, generic_category()); }
+
+ // 19.4.3.4 observers
+ int
+ value() const { return _M_value; }
+
+ const error_category&
+ category() const { return *_M_cat; }
+
+ string
+ message() const
+ { return category().message(value()); }
+
+ // Safe bool idiom.
+ // explicit operator bool() const throw()
+ // { return _M_value != 0; }
+ typedef void (*__bool_type)();
+
+ static void __not_bool_type() { }
+
+ operator __bool_type() const
+ { return _M_value != 0 ? &__not_bool_type : false; }
+
+ // DR 804.
+ private:
+ int _M_value;
+ const error_category* _M_cat;
+ };
+
+ // 19.4.3.6 non-member functions
+ inline error_condition
+ make_error_condition(errc __e)
+ { return error_condition(static_cast<int>(__e), generic_category()); }
+
+ inline bool
+ operator<(const error_condition& __lhs, const error_condition& __rhs)
+ {
+ return (__lhs.category() < __rhs.category()
+ || (__lhs.category() == __rhs.category()
+ && __lhs.value() < __rhs.value()));
+ }
+
+ // 19.4.4 Comparison operators
+ inline bool
+ operator==(const error_code& __lhs, const error_code& __rhs)
+ { return (__lhs.category() == __rhs.category()
+ && __lhs.value() == __rhs.value()); }
+
+ inline bool
+ operator==(const error_code& __lhs, const error_condition& __rhs)
+ {
+ return (__lhs.category().equivalent(__lhs.value(), __rhs)
+ || __rhs.category().equivalent(__lhs, __rhs.value()));
+ }
+
+ inline bool
+ operator==(const error_condition& __lhs, const error_code& __rhs)
+ {
+ return (__rhs.category().equivalent(__rhs.value(), __lhs)
+ || __lhs.category().equivalent(__rhs, __lhs.value()));
+ }
+
+ inline bool
+ operator==(const error_condition& __lhs, const error_condition& __rhs)
+ {
+ return (__lhs.category() == __rhs.category()
+ && __lhs.value() == __rhs.value());
+ }
+
+ inline bool
+ operator!=(const error_code& __lhs, const error_code& __rhs)
+ { return !(__lhs == __rhs); }
+
+ inline bool
+ operator!=(const error_code& __lhs, const error_condition& __rhs)
+ { return !(__lhs == __rhs); }
+
+ inline bool
+ operator!=(const error_condition& __lhs, const error_code& __rhs)
+ { return !(__lhs == __rhs); }
+
+ inline bool
+ operator!=(const error_condition& __lhs, const error_condition& __rhs)
+ { return !(__lhs == __rhs); }
+
+
+ /**
+ * @brief Thrown to indicate error code of underlying system.
+ *
+ * @ingroup exceptions
+ */
+ class system_error : public std::runtime_error
+ {
+ private:
+ error_code _M_code;
+
+ public:
+ system_error(error_code __ec = error_code())
+ : runtime_error(""), _M_code(__ec) { }
+
+ system_error(error_code __ec, const string& __what)
+ : runtime_error(__what), _M_code(__ec) { }
+
+ /*
+ * TODO: Add const char* ctors to all exceptions.
+ *
+ * system_error(error_code __ec, const char* __what)
+ * : runtime_error(__what), _M_code(__ec) { }
+ *
+ * system_error(int __v, const error_category& __ecat, const char* __what)
+ * : runtime_error(__what), _M_code(error_code(__v, __ecat)) { }
+ */
+
+ system_error(int __v, const error_category& __ecat)
+ : runtime_error(""), _M_code(error_code(__v, __ecat)) { }
+
+ system_error(int __v, const error_category& __ecat, const string& __what)
+ : runtime_error(__what), _M_code(error_code(__v, __ecat)) { }
+
+ virtual ~system_error() throw();
+
+ const error_code&
+ code() const throw() { return _M_code; }
+ };
+
+_GLIBCXX_END_NAMESPACE
+
+#endif // __GXX_EXPERIMENTAL_CXX0X__
+
+#endif // _GLIBCXX_SYSTEM_ERROR
+
projects / msp430-gcc.git / blobdiff