#pragma once
namespace graphite2
{
#if defined GRAPHITE2_BUILTINS && (defined __GNUC__ || defined __clang__)
template<typename T>
inline unsigned int bit_set_count(T v)
{
return __builtin_popcount(v);
}
template<>
inline unsigned int bit_set_count(int16 v)
{
return __builtin_popcount(static_cast<uint16>(v));
}
template<>
inline unsigned int bit_set_count(int8 v)
{
return __builtin_popcount(static_cast<uint8>(v));
}
template<>
inline unsigned int bit_set_count(unsigned long v)
{
return __builtin_popcountl(v);
}
template<>
inline unsigned int bit_set_count(signed long v)
{
return __builtin_popcountl(v);
}
template<>
inline unsigned int bit_set_count(unsigned long long v)
{
return __builtin_popcountll(v);
}
template<>
inline unsigned int bit_set_count(signed long long v)
{
return __builtin_popcountll(v);
}
#else
template<typename T>
inline unsigned int bit_set_count(T v)
{ … }
#endif
template<int S>
inline size_t _mask_over_val(size_t v)
{ … }
template<>
inline size_t _mask_over_val<1>(size_t v)
{ … }
template<typename T>
inline T mask_over_val(T v)
{ … }
template<typename T>
inline unsigned long next_highest_power2(T v)
{ … }
template<typename T>
inline unsigned int log_binary(T v)
{ … }
template<typename T>
inline T has_zero(const T x)
{ … }
template<typename T>
inline T zero_bytes(const T x, unsigned char n)
{ … }
#if 0
inline float float_round(float x, uint32 m)
{
*reinterpret_cast<unsigned int *>(&x) &= m;
return *reinterpret_cast<float *>(&x);
}
#endif
}