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Repurpose rotate function as rotate_left

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This commit is contained in:
Danny Robson 2012-04-11 15:20:05 +10:00
parent a3d965b917
commit cc2c726801
1 changed files with 2 additions and 4 deletions
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6
bitwise.hpp
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@ -35,12 +35,10 @@ const uint8_t BITMASK_8BITS = 0xFF;
template <typename T>
T rotate (const T &value, int magnitude) {
check_hard (magnitude < sizeof (value) * 8 &&
magnitude > -sizeof (value) * 8);
T rotate_left (const T &value, size_t magnitude) {
magnitude %= sizeof (T) * 8;
return (value << magnitude) | (value >> sizeof (value) * 8 - magnitude);
}
#endif