| author | rubidium |
| Fri, 25 Apr 2008 15:22:32 +0000 | |
| changeset 9055 | 4dc6a0c0ef47 |
| parent 8128 | 6856dfdd65f7 |
| child 9111 | 48ce04029fe4 |
| permissions | -rw-r--r-- |
| 6134 | 1 |
/* $Id$ */ |
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#ifndef CMD_HELPER_H |
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#define CMD_HELPER_H |
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8100
6bc08f98ec16
(svn r11661) -Codechange: some header reworks in order to try to reduce the compile time of OpenTTD by reduce the amount of circular-ish dependencies.
rubidium
parents:
6134
diff
changeset
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#include "direction_type.h" |
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8102
906a3d3b6df1
(svn r11663) -Codechange: moving of the road related types and functions.
rubidium
parents:
8100
diff
changeset
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#include "road_type.h" |
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template<uint N> static inline void ExtractValid(); |
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8128
6856dfdd65f7
(svn r11689) -Fix: compilation error and most of warnings for gcc 4.3
smatz
parents:
8113
diff
changeset
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template<> inline void ExtractValid<1>() {}
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template<typename T> struct ExtractBits; |
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template<> struct ExtractBits<Axis> { static const uint Count = 1; };
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template<> struct ExtractBits<DiagDirection> { static const uint Count = 2; };
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template<> struct ExtractBits<RoadBits> { static const uint Count = 4; };
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template<typename T, uint N, typename U> static inline T Extract(U v) |
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{
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// Check if there are enough bits in v |
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ExtractValid<N + ExtractBits<T>::Count <= sizeof(U) * 8>(); |
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return (T)GB(v, N, ExtractBits<T>::Count); |
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} |
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#endif |