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00012 #ifndef CMD_HELPER_H
00013 #define CMD_HELPER_H
00014
00015 #include "core/enum_type.hpp"
00016 #include "core/bitmath_func.hpp"
00017
00026 template<typename T, uint S, uint N, typename U> static inline T Extract(U v)
00027 {
00028
00029 assert_tcompile(N == EnumPropsT<T>::num_bits);
00030 assert_tcompile(S + N <= sizeof(U) * 8);
00031 assert_tcompile(EnumPropsT<T>::end <= (1 << N));
00032 U masked = GB(v, S, N);
00033 return IsInsideMM(masked, EnumPropsT<T>::begin, EnumPropsT<T>::end) ? (T)masked : EnumPropsT<T>::invalid;
00034 }
00035
00036 #endif