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Add hb_bitwise_neg

This commit is contained in:
Behdad Esfahbod 2019-06-18 12:50:42 -07:00
parent 7cf9169078
commit 24060d3aa7
1 changed files with 21 additions and 12 deletions
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33
src/hb-algs.hh
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@ -940,6 +940,12 @@ struct hb_bitwise_sub
operator () (const T &a, const T &b) const HB_AUTO_RETURN (a & ~b)
}
HB_FUNCOBJ (hb_bitwise_sub);
struct
{
template <typename T> auto
operator () (const T &a) const HB_AUTO_RETURN (~a)
}
HB_FUNCOBJ (hb_bitwise_neg);
struct
{ HB_PARTIALIZE(2);
@ -998,6 +1004,20 @@ struct hb_vector_size_t
void clear (unsigned char v = 0) { memset (this, v, sizeof (*this)); }
template <typename Op>
hb_vector_size_t process (const Op& op) const
{
hb_vector_size_t r;
#if HB_VECTOR_SIZE
if (HB_VECTOR_SIZE && 0 == (byte_size * 8) % HB_VECTOR_SIZE)
for (unsigned int i = 0; i < ARRAY_LENGTH (u.vec); i++)
r.u.vec[i] = op (u.vec[i]);
else
#endif
for (unsigned int i = 0; i < ARRAY_LENGTH (u.v); i++)
r.u.v[i] = op (u.v[i]);
return r;
}
template <typename Op>
hb_vector_size_t process (const Op& op, const hb_vector_size_t &o) const
{
@ -1019,18 +1039,7 @@ struct hb_vector_size_t
hb_vector_size_t operator ^ (const hb_vector_size_t &o) const
{ return process (hb_bitwise_xor, o); }
hb_vector_size_t operator ~ () const
{
hb_vector_size_t r;
#if HB_VECTOR_SIZE
if (HB_VECTOR_SIZE && 0 == (byte_size * 8) % HB_VECTOR_SIZE)
for (unsigned int i = 0; i < ARRAY_LENGTH (u.vec); i++)
r.u.vec[i] = ~u.vec[i];
else
#endif
for (unsigned int i = 0; i < ARRAY_LENGTH (u.v); i++)
r.u.v[i] = ~u.v[i];
return r;
}
{ return process (hb_bitwise_neg); }
private:
static_assert (byte_size / sizeof (elt_t) * sizeof (elt_t) == byte_size, "");