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179 lines
5.5 KiB
179 lines
5.5 KiB
/* |
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* Copyright 2008-2012 NVIDIA Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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/*! \file system/system_error.h |
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* \brief An exception object used to report error conditions that have an |
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* associated error code |
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*/ |
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#pragma once |
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#include <thrust/detail/config.h> |
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#include <stdexcept> |
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#include <string> |
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#include <thrust/system/error_code.h> |
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namespace thrust |
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{ |
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namespace system |
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{ |
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// [19.5.5] Class system_error |
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// [19.5.5.1] Class system_error overview |
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/*! \addtogroup system_diagnostics System Diagnostics |
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* \ingroup system |
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* \{ |
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*/ |
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/*! \brief The class \p system_error describes an exception object used to report error |
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* conditions that have an associated \p error_code. Such error conditions typically |
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* originate from the operating system or other low-level application program interfaces. |
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* |
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* Thrust uses \p system_error to report the error codes returned from device backends |
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* such as the CUDA runtime. |
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* |
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* The following code listing demonstrates how to catch a \p system_error to recover |
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* from an error. |
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* |
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* \code |
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* |
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* #include <thrust/device_vector.h> |
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* #include <thrust/system.h> |
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* #include <thrust/sort.h> |
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* |
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* void terminate_gracefully(void) |
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* { |
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* // application-specific termination code here |
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* ... |
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* } |
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* |
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* int main(void) |
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* { |
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* try |
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* { |
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* thrust::device_vector<float> vec; |
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* thrust::sort(vec.begin(), vec.end()); |
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* } |
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* catch(thrust::system_error e) |
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* { |
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* std::cerr << "Error inside sort: " << e.what() << std::endl; |
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* terminate_gracefully(); |
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* } |
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* |
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* return 0; |
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* } |
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* |
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* \endcode |
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* |
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* \note If an error represents an out-of-memory condition, implementations are encouraged |
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* to throw an exception object of type \p std::bad_alloc rather than \p system_error. |
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*/ |
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class system_error |
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: public std::runtime_error |
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{ |
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public: |
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// [19.5.5.2] Class system_error members |
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/*! Constructs an object of class \p system_error. |
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* \param ec The value returned by \p code(). |
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* \param what_arg A string to include in the result returned by \p what(). |
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* \post <tt>code() == ec</tt>. |
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* \post <tt>std::string(what()).find(what_arg) != string::npos</tt>. |
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*/ |
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inline system_error(error_code ec, const std::string &what_arg); |
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/*! Constructs an object of class \p system_error. |
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* \param ec The value returned by \p code(). |
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* \param what_arg A string to include in the result returned by \p what(). |
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* \post <tt>code() == ec</tt>. |
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* \post <tt>std::string(what()).find(what_arg) != string::npos</tt>. |
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*/ |
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inline system_error(error_code ec, const char *what_arg); |
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/*! Constructs an object of class \p system_error. |
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* \param ec The value returned by \p code(). |
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* \post <tt>code() == ec</tt>. |
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*/ |
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inline system_error(error_code ec); |
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/*! Constructs an object of class \p system_error. |
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* \param ev The error value used to create an \p error_code. |
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* \param ecat The \p error_category used to create an \p error_code. |
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* \param what_arg A string to include in the result returned by \p what(). |
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* \post <tt>code() == error_code(ev, ecat)</tt>. |
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* \post <tt>std::string(what()).find(what_arg) != string::npos</tt>. |
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*/ |
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inline system_error(int ev, const error_category &ecat, const std::string &what_arg); |
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/*! Constructs an object of class \p system_error. |
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* \param ev The error value used to create an \p error_code. |
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* \param ecat The \p error_category used to create an \p error_code. |
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* \param what_arg A string to include in the result returned by \p what(). |
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* \post <tt>code() == error_code(ev, ecat)</tt>. |
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* \post <tt>std::string(what()).find(what_arg) != string::npos</tt>. |
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*/ |
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inline system_error(int ev, const error_category &ecat, const char *what_arg); |
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/*! Constructs an object of class \p system_error. |
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* \param ev The error value used to create an \p error_code. |
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* \param ecat The \p error_category used to create an \p error_code. |
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* \post <tt>code() == error_code(ev, ecat)</tt>. |
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*/ |
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inline system_error(int ev, const error_category &ecat); |
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/*! Destructor does not throw. |
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*/ |
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inline virtual ~system_error(void) throw () {}; |
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/*! Returns an object encoding the error. |
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* \return <tt>ec</tt> or <tt>error_code(ev, ecat)</tt>, from the |
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* constructor, as appropriate. |
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*/ |
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inline const error_code &code(void) const throw(); |
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/*! Returns a human-readable string indicating the nature of the error. |
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* \return a string incorporating <tt>code().message()</tt> and the |
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* arguments supplied in the constructor. |
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*/ |
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inline const char *what(void) const throw(); |
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/*! \cond |
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*/ |
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private: |
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error_code m_error_code; |
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mutable std::string m_what; |
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/*! \endcond |
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*/ |
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}; // end system_error |
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} // end system |
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/*! \} // end system_diagnostics |
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*/ |
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// import names into thrust:: |
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using system::system_error; |
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} // end thrust |
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#include <thrust/system/detail/system_error.inl> |
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