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112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
/*
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Simple DirectMedia Layer
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Copyright (C) 1997-2020 Sam Lantinga <slouken@libsdl.org>
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This software is provided 'as-is', without any express or implied
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warranty. In no event will the authors be held liable for any damages
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arising from the use of this software.
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Permission is granted to anyone to use this software for any purpose,
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including commercial applications, and to alter it and redistribute it
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freely, subject to the following restrictions:
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1. The origin of this software must not be misrepresented; you must not
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claim that you wrote the original software. If you use this software
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in a product, an acknowledgment in the product documentation would be
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appreciated but is not required.
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2. Altered source versions must be plainly marked as such, and must not be
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misrepresented as being the original software.
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3. This notice may not be removed or altered from any source distribution.
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*/
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/**
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* \file SDL_error.h
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*
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* Simple error message routines for SDL.
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*/
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#ifndef SDL_error_h_
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#define SDL_error_h_
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#include "SDL_stdinc.h"
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#include "begin_code.h"
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/* Set up for C function definitions, even when using C++ */
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* Public functions */
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/**
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* \brief Set the error message for the current thread
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*
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* \return -1, there is no error handling for this function
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*/
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extern DECLSPEC int SDLCALL SDL_SetError(SDL_PRINTF_FORMAT_STRING const char *fmt, ...) SDL_PRINTF_VARARG_FUNC(1);
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/**
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* \brief Get the last error message that was set
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*
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* SDL API functions may set error messages and then succeed, so you should
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* only use the error value if a function fails.
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*
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* This returns a pointer to a static buffer for convenience and should not
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* be called by multiple threads simultaneously.
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*
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* \return a pointer to the last error message that was set
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*/
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extern DECLSPEC const char *SDLCALL SDL_GetError(void);
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/**
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* \brief Get the last error message that was set for the current thread
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*
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* SDL API functions may set error messages and then succeed, so you should
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* only use the error value if a function fails.
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*
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* \param errstr A buffer to fill with the last error message that was set
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* for the current thread
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* \param maxlen The size of the buffer pointed to by the errstr parameter
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*
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* \return errstr
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*/
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extern DECLSPEC char * SDLCALL SDL_GetErrorMsg(char *errstr, int maxlen);
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/**
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* \brief Clear the error message for the current thread
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*/
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extern DECLSPEC void SDLCALL SDL_ClearError(void);
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/**
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* \name Internal error functions
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*
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* \internal
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* Private error reporting function - used internally.
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*/
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/* @{ */
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#define SDL_OutOfMemory() SDL_Error(SDL_ENOMEM)
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#define SDL_Unsupported() SDL_Error(SDL_UNSUPPORTED)
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#define SDL_InvalidParamError(param) SDL_SetError("Parameter '%s' is invalid", (param))
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typedef enum
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{
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SDL_ENOMEM,
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SDL_EFREAD,
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SDL_EFWRITE,
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SDL_EFSEEK,
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SDL_UNSUPPORTED,
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SDL_LASTERROR
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} SDL_errorcode;
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/* SDL_Error() unconditionally returns -1. */
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extern DECLSPEC int SDLCALL SDL_Error(SDL_errorcode code);
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/* @} *//* Internal error functions */
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/* Ends C function definitions when using C++ */
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#ifdef __cplusplus
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}
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#endif
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#include "close_code.h"
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#endif /* SDL_error_h_ */
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/* vi: set ts=4 sw=4 expandtab: */
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