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37 * Declares error codes and related functions for fatal error handling.
39 * \author Teemu Murtola <teemu.murtola@gmail.com>
41 * \ingroup module_utility
43 #ifndef GMX_UTILITY_ERRORCODES_H
44 #define GMX_UTILITY_ERRORCODES_H
49 /*! \addtogroup module_utility
54 * Possible error return codes from Gromacs functions.
58 //! Zero for successful return.
61 //! Not enough memory to complete operation.
63 //! Provided file could not be opened.
67 //! Invalid user input (could not be understood).
69 //! Invalid user input (conflicting or unsupported settings).
71 //! Simulation instability detected.
74 /*! \name Error codes for buggy code
76 * Error codes below are for internal error checking; if triggered, they
77 * should indicate a bug in the code.
80 //! Requested feature not yet implemented.
82 //! Input value violates API specification.
84 //! Invalid routine called or wrong calling sequence detected.
86 //! Internal consistency check failed.
88 //! API specification was violated.
90 //! Range consistency check failed.
92 //! Communication consistency check failed.
96 //! Unknown error detected.
101 * Returns a short string description of an error code.
103 * \param[in] errorcode Error code to retrieve the string for.
104 * \returns A constant string corresponding to \p errorcode.
106 * If \p errorcode is not one of those defined for ::gmx::ErrorCode,
107 * the string corresponding to ::eeUnknownError is returned.
109 * This function does not throw.
111 const char *getErrorCodeString(int errorcode);
114 * Callback function pointer type for error handlers.
116 * \param[in] retcode Code of the error that has occurred.
117 * \param[in] msg More detailed description of the error.
118 * \param[in] file Name of the file where the error occurred.
119 * \param[in] line Line in \p file on which the error occurred.
121 typedef void (*ErrorHandlerFunc)(int retcode, const char *msg,
122 const char *file, int line);
125 * Sets callback function for handling errors.
127 * \param[in] handler New error handler function.
128 * \returns Old error handler function.
130 * The default error handler prints out the location and reason of the error to
131 * stderr, and then calls std::abort().
133 ErrorHandlerFunc setFatalErrorHandler(ErrorHandlerFunc handler);
136 * Macro for raising an error and returning from a function.
138 * The function should return \c int.
139 * If it doesn't, use ::GMX_ERROR_NORET.
141 #define GMX_ERROR(retcode, msg) \
143 int _rc_internal = (retcode); \
144 ::gmx::internal::fatalError(_rc_internal, msg, __FILE__, __LINE__); \
145 return _rc_internal; \
149 * Macro for raising an error in a function that does not return \c int.
153 #define GMX_ERROR_NORET(retcode, msg) \
154 ::gmx::internal::fatalError(retcode, msg, __FILE__, __LINE__)
158 /*! \cond internal */
163 * Raises a fatal error.
165 * \param[in] retcode Error code to raise.
166 * \param[in] msg More detailed description of the error.
167 * \param[in] file Name of the source file where the error occurred.
168 * \param[in] line Line in \p file on which the error occurred.
170 * Should not be called directly, but instead through ::GMX_ERROR or
173 * \ingroup module_utility
175 void fatalError(int retcode, const char *msg, const char *file, int line);
177 } // namespace internal