--- /dev/null
+/***************************************************************************/
+/* */
+/* 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 */
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