39 lines
1.6 KiB
C
39 lines
1.6 KiB
C
/** \brief enum to string conversion
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*
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* This is the heart of the 'automatic' enum to string conversion and taken
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* from:
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* <a href="http://www.codeproject.com/KB/cpp/C___enums_to_strings.aspx">http://www.codeproject.com/KB/cpp/C___enums_to_strings.aspx</a>
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*
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* Thanks to Marcos F. Cardoso.
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*
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* With the preprocessor #defines from this file and a special inclusion and
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* enum definition strategy the code for enum to string conversion is
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* automatically created.
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*
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* For an enum of name "MyEnum" the conversion function will be called
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* <code>const char* GetStringMyEnum(MyEnum tagMyEnum);</code>.
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*
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*/
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#undef DECL_ENUM_LAST
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#undef DECL_ENUM_ELEMENT
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#undef BEGIN_ENUM
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#undef END_ENUM
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#ifndef GENERATE_ENUM_STRINGS
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#define DECL_ENUM_LAST( ENUM_NAME ) ENUM_NAME ## Last
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#define DECL_ENUM_ELEMENT( element ) element
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#define BEGIN_ENUM( ENUM_NAME ) typedef enum tag##ENUM_NAME
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#define END_ENUM( ENUM_NAME ) ENUM_NAME; \
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const char* GetString##ENUM_NAME(enum tag##ENUM_NAME index); \
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const char* GetString##ENUM_NAME(unsigned int index);
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#else
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#define DECL_ENUM_LAST( ENUM_NAME ) #ENUM_NAME
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#define DECL_ENUM_ELEMENT( element ) #element
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#define BEGIN_ENUM( ENUM_NAME ) const char* gs_##ENUM_NAME [] =
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#define END_ENUM( ENUM_NAME ) ; \
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const char* GetString##ENUM_NAME(enum \
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tag##ENUM_NAME index){ if (index < 0 || index > ENUM_NAME ## Last) return "Unknown Enum"; return gs_##ENUM_NAME [index]; } \
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const char* GetString##ENUM_NAME(unsigned int index){ if (index < 0 || index > ENUM_NAME ## Last) return "Unknown Enum"; return gs_##ENUM_NAME [index]; }
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#endif
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