(svn r8605) -Codechange: [OSX] changed all objective C to objective C++
This will permanently solve the issue where compilation on OSX broke because C++ code was added to some header files

-Note: (important if you develop mac specific code)
taken from http://developer.apple.com/releasenotes/Cocoa/Objective-C++.html
gdb lacks an integrated C++ with Objective-C parser. This means that gdb won't be able to evaluate expressions that contain both C++ and Objective-C constructs.
gdb assumes that the language for ".mm" files is C++.
you can change it to objective C by typing: (gdb) set language objc
Mixing C++ and objective C has some limitation (see link for all of them)

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/* $Id$ */

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#ifndef ROAD_H

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#define ROAD_H

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#include "helpers.hpp"

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typedef enum RoadBits {

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	ROAD_NONE = 0U,

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	ROAD_NW  = 1U,

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	ROAD_SW  = 2U,

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	ROAD_SE  = 4U,

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	ROAD_NE  = 8U,

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	ROAD_X   = ROAD_SW | ROAD_NE,

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	ROAD_Y   = ROAD_NW | ROAD_SE,

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	ROAD_ALL = ROAD_X  | ROAD_Y

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} RoadBits;

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DECLARE_ENUM_AS_BIT_SET(RoadBits);

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static inline RoadBits ComplementRoadBits(RoadBits r)

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{

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	return (RoadBits)(ROAD_ALL ^ r);

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}

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static inline RoadBits DiagDirToRoadBits(DiagDirection d)

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{

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	return (RoadBits)(1U << (3 ^ d));

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}

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#endif /* ROAD_H */