-// -*- C++ -*- std header.
+// Standard exception classes -*- C++ -*-
-// Copyright (C) 2001 Free Software Foundation, Inc.
+// Copyright (C) 2001-2020 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 2, or (at your option)
+// 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,
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
-// You should have received a copy of the GNU General Public License along
-// with this library; see the file COPYING. If not, write to the Free
-// Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307,
-// USA.
-
-// As a special exception, you may use this file as part of a free software
-// library without restriction. Specifically, if other files instantiate
-// templates or use macros or inline functions from this file, or you compile
-// this file and link it with other files to produce an executable, this
-// file does not by itself cause the resulting executable to be covered by
-// the GNU General Public License. This exception does not however
-// invalidate any other reasons why the executable file might be covered by
-// the GNU General Public License.
-
-/** @file stdexcept
- * This is a Standard C++ Library file. You should @c #include this file
- * in your programs, rather than any of the "st[dl]_*.h" implementation files.
+// 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 include/stdexcept
+ * This is a Standard C++ Library header.
*/
-#ifndef _CPP_STDEXCEPT
-#include <bits/std_stdexcept.h>
+//
+// ISO C++ 19.1 Exception classes
+//
+
+#ifndef _GLIBCXX_STDEXCEPT
+#define _GLIBCXX_STDEXCEPT 1
+
+#pragma GCC system_header
+
+#include <exception>
+#include <string>
+
+namespace std _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+#if _GLIBCXX_USE_DUAL_ABI
+#if _GLIBCXX_USE_CXX11_ABI
+ // Emulates an old COW string when the new std::string is in use.
+ struct __cow_string
+ {
+ union {
+ const char* _M_p;
+ char _M_bytes[sizeof(const char*)];
+ };
+
+ __cow_string();
+ __cow_string(const std::string&);
+ __cow_string(const char*, size_t);
+ __cow_string(const __cow_string&) _GLIBCXX_NOTHROW;
+ __cow_string& operator=(const __cow_string&) _GLIBCXX_NOTHROW;
+ ~__cow_string();
+#if __cplusplus >= 201103L
+ __cow_string(__cow_string&&) noexcept;
+ __cow_string& operator=(__cow_string&&) noexcept;
+#endif
+ };
+
+ typedef basic_string<char> __sso_string;
+#else // _GLIBCXX_USE_CXX11_ABI
+ typedef basic_string<char> __cow_string;
+
+ // Emulates a new SSO string when the old std::string is in use.
+ struct __sso_string
+ {
+ struct __str
+ {
+ const char* _M_p;
+ size_t _M_string_length;
+ char _M_local_buf[16];
+ };
+
+ union {
+ __str _M_s;
+ char _M_bytes[sizeof(__str)];
+ };
+
+ __sso_string() _GLIBCXX_NOTHROW;
+ __sso_string(const std::string&);
+ __sso_string(const char*, size_t);
+ __sso_string(const __sso_string&);
+ __sso_string& operator=(const __sso_string&);
+ ~__sso_string();
+#if __cplusplus >= 201103L
+ __sso_string(__sso_string&&) noexcept;
+ __sso_string& operator=(__sso_string&&) noexcept;
+#endif
+ };
+#endif // _GLIBCXX_USE_CXX11_ABI
+#else // _GLIBCXX_USE_DUAL_ABI
+ typedef basic_string<char> __sso_string;
+ typedef basic_string<char> __cow_string;
+#endif
+
+ /**
+ * @addtogroup exceptions
+ * @{
+ */
+
+ /** Logic errors represent problems in the internal logic of a program;
+ * in theory, these are preventable, and even detectable before the
+ * program runs (e.g., violations of class invariants).
+ * @brief One of two subclasses of exception.
+ */
+ class logic_error : public exception
+ {
+ __cow_string _M_msg;
+
+ public:
+ /** Takes a character string describing the error. */
+ explicit
+ logic_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+
+#if __cplusplus >= 201103L
+ explicit
+ logic_error(const char*) _GLIBCXX_TXN_SAFE;
+
+ logic_error(logic_error&&) noexcept;
+ logic_error& operator=(logic_error&&) noexcept;
+#endif
+
+#if _GLIBCXX_USE_CXX11_ABI || _GLIBCXX_DEFINE_STDEXCEPT_COPY_OPS
+ logic_error(const logic_error&) _GLIBCXX_NOTHROW;
+ logic_error& operator=(const logic_error&) _GLIBCXX_NOTHROW;
+#elif __cplusplus >= 201103L
+ logic_error(const logic_error&) = default;
+ logic_error& operator=(const logic_error&) = default;
+#endif
+
+ virtual ~logic_error() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW;
+
+ /** Returns a C-style character string describing the general cause of
+ * the current error (the same string passed to the ctor). */
+ virtual const char*
+ what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW;
+
+# ifdef _GLIBCXX_TM_TS_INTERNAL
+ friend void*
+ ::_txnal_logic_error_get_msg(void* e);
+# endif
+ };
+
+ /** Thrown by the library, or by you, to report domain errors (domain in
+ * the mathematical sense). */
+ class domain_error : public logic_error
+ {
+ public:
+ explicit domain_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit domain_error(const char*) _GLIBCXX_TXN_SAFE;
+ domain_error(const domain_error&) = default;
+ domain_error& operator=(const domain_error&) = default;
+ domain_error(domain_error&&) = default;
+ domain_error& operator=(domain_error&&) = default;
+#endif
+ virtual ~domain_error() _GLIBCXX_NOTHROW;
+ };
+
+ /** Thrown to report invalid arguments to functions. */
+ class invalid_argument : public logic_error
+ {
+ public:
+ explicit invalid_argument(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit invalid_argument(const char*) _GLIBCXX_TXN_SAFE;
+ invalid_argument(const invalid_argument&) = default;
+ invalid_argument& operator=(const invalid_argument&) = default;
+ invalid_argument(invalid_argument&&) = default;
+ invalid_argument& operator=(invalid_argument&&) = default;
+#endif
+ virtual ~invalid_argument() _GLIBCXX_NOTHROW;
+ };
+
+ /** Thrown when an object is constructed that would exceed its maximum
+ * permitted size (e.g., a basic_string instance). */
+ class length_error : public logic_error
+ {
+ public:
+ explicit length_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit length_error(const char*) _GLIBCXX_TXN_SAFE;
+ length_error(const length_error&) = default;
+ length_error& operator=(const length_error&) = default;
+ length_error(length_error&&) = default;
+ length_error& operator=(length_error&&) = default;
+#endif
+ virtual ~length_error() _GLIBCXX_NOTHROW;
+ };
+
+ /** This represents an argument whose value is not within the expected
+ * range (e.g., boundary checks in basic_string). */
+ class out_of_range : public logic_error
+ {
+ public:
+ explicit out_of_range(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit out_of_range(const char*) _GLIBCXX_TXN_SAFE;
+ out_of_range(const out_of_range&) = default;
+ out_of_range& operator=(const out_of_range&) = default;
+ out_of_range(out_of_range&&) = default;
+ out_of_range& operator=(out_of_range&&) = default;
#endif
+ virtual ~out_of_range() _GLIBCXX_NOTHROW;
+ };
+
+ /** Runtime errors represent problems outside the scope of a program;
+ * they cannot be easily predicted and can generally only be caught as
+ * the program executes.
+ * @brief One of two subclasses of exception.
+ */
+ class runtime_error : public exception
+ {
+ __cow_string _M_msg;
+
+ public:
+ /** Takes a character string describing the error. */
+ explicit
+ runtime_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+
+#if __cplusplus >= 201103L
+ explicit
+ runtime_error(const char*) _GLIBCXX_TXN_SAFE;
+
+ runtime_error(runtime_error&&) noexcept;
+ runtime_error& operator=(runtime_error&&) noexcept;
+#endif
+
+#if _GLIBCXX_USE_CXX11_ABI || _GLIBCXX_DEFINE_STDEXCEPT_COPY_OPS
+ runtime_error(const runtime_error&) _GLIBCXX_NOTHROW;
+ runtime_error& operator=(const runtime_error&) _GLIBCXX_NOTHROW;
+#elif __cplusplus >= 201103L
+ runtime_error(const runtime_error&) = default;
+ runtime_error& operator=(const runtime_error&) = default;
+#endif
+
+ virtual ~runtime_error() _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW;
+
+ /** Returns a C-style character string describing the general cause of
+ * the current error (the same string passed to the ctor). */
+ virtual const char*
+ what() const _GLIBCXX_TXN_SAFE_DYN _GLIBCXX_NOTHROW;
+
+# ifdef _GLIBCXX_TM_TS_INTERNAL
+ friend void*
+ ::_txnal_runtime_error_get_msg(void* e);
+# endif
+ };
+
+ /** Thrown to indicate range errors in internal computations. */
+ class range_error : public runtime_error
+ {
+ public:
+ explicit range_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit range_error(const char*) _GLIBCXX_TXN_SAFE;
+ range_error(const range_error&) = default;
+ range_error& operator=(const range_error&) = default;
+ range_error(range_error&&) = default;
+ range_error& operator=(range_error&&) = default;
+#endif
+ virtual ~range_error() _GLIBCXX_NOTHROW;
+ };
+
+ /** Thrown to indicate arithmetic overflow. */
+ class overflow_error : public runtime_error
+ {
+ public:
+ explicit overflow_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit overflow_error(const char*) _GLIBCXX_TXN_SAFE;
+ overflow_error(const overflow_error&) = default;
+ overflow_error& operator=(const overflow_error&) = default;
+ overflow_error(overflow_error&&) = default;
+ overflow_error& operator=(overflow_error&&) = default;
+#endif
+ virtual ~overflow_error() _GLIBCXX_NOTHROW;
+ };
+
+ /** Thrown to indicate arithmetic underflow. */
+ class underflow_error : public runtime_error
+ {
+ public:
+ explicit underflow_error(const string& __arg) _GLIBCXX_TXN_SAFE;
+#if __cplusplus >= 201103L
+ explicit underflow_error(const char*) _GLIBCXX_TXN_SAFE;
+ underflow_error(const underflow_error&) = default;
+ underflow_error& operator=(const underflow_error&) = default;
+ underflow_error(underflow_error&&) = default;
+ underflow_error& operator=(underflow_error&&) = default;
+#endif
+ virtual ~underflow_error() _GLIBCXX_NOTHROW;
+ };
+
+ // @} group exceptions
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+#endif /* _GLIBCXX_STDEXCEPT */
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