Mercurial > hg > openttd
view src/cmd_helper.h @ 9038:6e86ab2cba9f draft
(svn r12857) -Fix [FS#1948]: remove the last uses of AutoPtr in the station code.
author | rubidium <rubidium@openttd.org> |
---|---|
date | Wed, 23 Apr 2008 22:16:41 +0000 |
parents | c4f75b4136a0 |
children | d48433370037 |
line wrap: on
line source
/* $Id$ */ #ifndef CMD_HELPER_H #define CMD_HELPER_H #include "direction_type.h" #include "road_type.h" template<uint N> static inline void ExtractValid(); template<> inline void ExtractValid<1>() {} template<typename T> struct ExtractBits; template<> struct ExtractBits<Axis> { static const uint Count = 1; }; template<> struct ExtractBits<DiagDirection> { static const uint Count = 2; }; template<> struct ExtractBits<RoadBits> { static const uint Count = 4; }; template<typename T, uint N, typename U> static inline T Extract(U v) { // Check if there are enough bits in v ExtractValid<N + ExtractBits<T>::Count <= sizeof(U) * 8>(); return (T)GB(v, N, ExtractBits<T>::Count); } #endif