/***************************************************************************//* *//* fterrors.h *//* *//* FreeType error code handling (specification). *//* *//* Copyright 1996-2001, 2002 by *//* David Turner, Robert Wilhelm, and Werner Lemberg. *//* *//* This file is part of the FreeType project, and may only be used, *//* modified, and distributed under the terms of the FreeType project *//* license, LICENSE.TXT. By continuing to use, modify, or distribute *//* this file you indicate that you have read the license and *//* understand and accept it fully. *//* *//***************************************************************************/ /*************************************************************************/ /* */ /* This special header file is used to define the handling of FT2 */ /* enumeration constants. It can also be used to generate error message */ /* strings with a small macro trick explained below. */ /* */ /* I - Error Formats */ /* ----------------- */ /* */ /* Since release 2.1, the error constants have changed. The lower */ /* byte of the error value gives the "generic" error code, while the */ /* higher byte indicates in which module the error occurred. */ /* */ /* You can use the macro FT_ERROR_BASE(x) macro to extract the generic */ /* error code from an FT_Error value. */ /* */ /* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */ /* undefined in ftoption.h in order to make the higher byte always */ /* zero, in case you need to be compatible with previous versions of */ /* FreeType 2. */ /* */ /* */ /* II - Error Message strings */ /* -------------------------- */ /* */ /* The error definitions below are made through special macros that */ /* allow client applications to build a table of error message strings */ /* if they need it. The strings are not included in a normal build of */ /* FreeType 2 to save space (most client applications do not use */ /* them). */ /* */ /* To do so, you have to define the following macros before including */ /* this file: */ /* */ /* FT_ERROR_START_LIST :: */ /* This macro is called before anything else to define the start of */ /* the error list. It is followed by several FT_ERROR_DEF calls */ /* (see below). */ /* */ /* FT_ERROR_DEF( e, v, s ) :: */ /* This macro is called to define one single error. */ /* `e' is the error code identifier (e.g. FT_Err_Invalid_Argument). */ /* `v' is the error numerical value. */ /* `s' is the corresponding error string. */ /* */ /* FT_ERROR_END_LIST :: */ /* This macro ends the list. */ /* */ /* Additionally, you have to undefine __FTERRORS_H__ before #including */ /* this file. */ /* */ /* Here is a simple example: */ /* */ /* { */ /* #undef __FTERRORS_H__ */ /* #define FT_ERRORDEF( e, v, s ) { e, s }, */ /* #define FT_ERROR_START_LIST { */ /* #define FT_ERROR_END_LIST { 0, 0 } }; */ /* */ /* const struct */ /* { */ /* int err_code; */ /* const char* err_msg */ /* } ft_errors[] = */ /* */ /* #include FT_ERRORS_H */ /* } */ /* */ /*************************************************************************/#ifndef __FTERRORS_H__#define __FTERRORS_H__ /* include module base error codes */#include FT_MODULE_ERRORS_H /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** SETUP MACROS *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/#undef FT_NEED_EXTERN_C#undef FT_ERR_XCAT#undef FT_ERR_CAT#define FT_ERR_XCAT( x, y ) x ## y#define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y ) /* FT_ERR_PREFIX is used as a prefix for error identifiers. */ /* By default, we use `FT_Err_'. */ /* */#ifndef FT_ERR_PREFIX#define FT_ERR_PREFIX FT_Err_#endif /* FT_ERR_BASE is used as the base for module-specific errors. */ /* */#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS#ifndef FT_ERR_BASE#define FT_ERR_BASE FT_Mod_Err_Base#endif#else#undef FT_ERR_BASE#define FT_ERR_BASE 0#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */ /* If FT_ERRORDEF is not defined, we need to define a simple */ /* enumeration type. */ /* */#ifndef FT_ERRORDEF#define FT_ERRORDEF( e, v, s ) e = v,#define FT_ERROR_START_LIST enum {#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) };#ifdef __cplusplus#define FT_NEED_EXTERN_C extern "C" {#endif#endif /* !FT_ERRORDEF */ /* this macro is used to define an error */#define FT_ERRORDEF_( e, v, s ) \ FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s ) /* this is only used for FT_Err_Ok, which must be 0! */#define FT_NOERRORDEF_( e, v, s ) \ FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s )#ifdef FT_ERROR_START_LIST FT_ERROR_START_LIST#endif /* no include the error codes */#include FT_ERROR_DEFINITIONS_H#ifdef FT_ERROR_END_LIST FT_ERROR_END_LIST#endif /*******************************************************************/ /*******************************************************************/ /***** *****/ /***** SIMPLE CLEANUP *****/ /***** *****/ /*******************************************************************/ /*******************************************************************/#ifdef FT_NEED_EXTERN_C }#endif#undef FT_ERROR_START_LIST#undef FT_ERROR_END_LIST#undef FT_ERRORDEF#undef FT_ERRORDEF_#undef FT_NOERRORDEF_#undef FT_NEED_EXTERN_C#undef FT_ERR_PREFIX#undef FT_ERR_BASE#undef FT_ERR_CONCAT#endif /* __FTERRORS_H__ *//* END */
/***************************************************************************/
/* */
/* fterrors.h */
/* */
/* FreeType error code handling (specification). */
/* */
/* Copyright 1996-2001, 2002 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
/* modified, and distributed under the terms of the FreeType project */
/* license, LICENSE.TXT. By continuing to use, modify, or distribute */
/* this file you indicate that you have read the license and */
/* understand and accept it fully. */
/* */
/***************************************************************************/
/*************************************************************************/
/* */
/* This special header file is used to define the handling of FT2 */
/* enumeration constants. It can also be used to generate error message */
/* strings with a small macro trick explained below. */
/* */
/* I - Error Formats */
/* ----------------- */
/* */
/* Since release 2.1, the error constants have changed. The lower */
/* byte of the error value gives the "generic" error code, while the */
/* higher byte indicates in which module the error occurred. */
/* */
/* You can use the macro FT_ERROR_BASE(x) macro to extract the generic */
/* error code from an FT_Error value. */
/* */
/* The configuration macro FT_CONFIG_OPTION_USE_MODULE_ERRORS can be */
/* undefined in ftoption.h in order to make the higher byte always */
/* zero, in case you need to be compatible with previous versions of */
/* FreeType 2. */
/* */
/* */
/* II - Error Message strings */
/* -------------------------- */
/* */
/* The error definitions below are made through special macros that */
/* allow client applications to build a table of error message strings */
/* if they need it. The strings are not included in a normal build of */
/* FreeType 2 to save space (most client applications do not use */
/* them). */
/* */
/* To do so, you have to define the following macros before including */
/* this file: */
/* */
/* FT_ERROR_START_LIST :: */
/* This macro is called before anything else to define the start of */
/* the error list. It is followed by several FT_ERROR_DEF calls */
/* (see below). */
/* */
/* FT_ERROR_DEF( e, v, s ) :: */
/* This macro is called to define one single error. */
/* `e' is the error code identifier (e.g. FT_Err_Invalid_Argument). */
/* `v' is the error numerical value. */
/* `s' is the corresponding error string. */
/* */
/* FT_ERROR_END_LIST :: */
/* This macro ends the list. */
/* */
/* Additionally, you have to undefine __FTERRORS_H__ before #including */
/* this file. */
/* */
/* Here is a simple example: */
/* */
/* { */
/* #undef __FTERRORS_H__ */
/* #define FT_ERRORDEF( e, v, s ) { e, s }, */
/* #define FT_ERROR_START_LIST { */
/* #define FT_ERROR_END_LIST { 0, 0 } }; */
/* */
/* const struct */
/* { */
/* int err_code; */
/* const char* err_msg */
/* } ft_errors[] = */
/* */
/* #include FT_ERRORS_H */
/* } */
/* */
/*************************************************************************/
#ifndef __FTERRORS_H__
#define __FTERRORS_H__
/* include module base error codes */
#include FT_MODULE_ERRORS_H
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SETUP MACROS *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#undef FT_NEED_EXTERN_C
#undef FT_ERR_XCAT
#undef FT_ERR_CAT
#define FT_ERR_XCAT( x, y ) x ## y
#define FT_ERR_CAT( x, y ) FT_ERR_XCAT( x, y )
/* FT_ERR_PREFIX is used as a prefix for error identifiers. */
/* By default, we use `FT_Err_'. */
/* */
#ifndef FT_ERR_PREFIX
#define FT_ERR_PREFIX FT_Err_
#endif
/* FT_ERR_BASE is used as the base for module-specific errors. */
/* */
#ifdef FT_CONFIG_OPTION_USE_MODULE_ERRORS
#ifndef FT_ERR_BASE
#define FT_ERR_BASE FT_Mod_Err_Base
#endif
#else
#undef FT_ERR_BASE
#define FT_ERR_BASE 0
#endif /* FT_CONFIG_OPTION_USE_MODULE_ERRORS */
/* If FT_ERRORDEF is not defined, we need to define a simple */
/* enumeration type. */
/* */
#ifndef FT_ERRORDEF
#define FT_ERRORDEF( e, v, s ) e = v,
#define FT_ERROR_START_LIST enum {
#define FT_ERROR_END_LIST FT_ERR_CAT( FT_ERR_PREFIX, Max ) };
#ifdef __cplusplus
#define FT_NEED_EXTERN_C
extern "C" {
#endif
#endif /* !FT_ERRORDEF */
/* this macro is used to define an error */
#define FT_ERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v + FT_ERR_BASE, s )
/* this is only used for FT_Err_Ok, which must be 0! */
#define FT_NOERRORDEF_( e, v, s ) \
FT_ERRORDEF( FT_ERR_CAT( FT_ERR_PREFIX, e ), v, s )
#ifdef FT_ERROR_START_LIST
FT_ERROR_START_LIST
#endif
/* no include the error codes */
#include FT_ERROR_DEFINITIONS_H
#ifdef FT_ERROR_END_LIST
FT_ERROR_END_LIST
#endif
/*******************************************************************/
/*******************************************************************/
/***** *****/
/***** SIMPLE CLEANUP *****/
/***** *****/
/*******************************************************************/
/*******************************************************************/
#ifdef FT_NEED_EXTERN_C
}
#endif
#undef FT_ERROR_START_LIST
#undef FT_ERROR_END_LIST
#undef FT_ERRORDEF
#undef FT_ERRORDEF_
#undef FT_NOERRORDEF_
#undef FT_NEED_EXTERN_C
#undef FT_ERR_PREFIX
#undef FT_ERR_BASE
#undef FT_ERR_CONCAT
#endif /* __FTERRORS_H__ */
/* END */