本文整理汇总了C++中default_ops::eval_lsb方法的典型用法代码示例。如果您正苦于以下问题：C++ default_ops::eval_lsb方法的具体用法？C++ default_ops::eval_lsb怎么用？C++ default_ops::eval_lsb使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类default_ops的用法示例。
在下文中一共展示了default_ops::eval_lsb方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: eval_lsb
inline unsigned eval_lsb(const logged_adaptor<Backend>& arg)
{
using default_ops::eval_lsb;
log_prefix_event(arg.value(), "least-significant-bit");
unsigned r = eval_lsb(arg.value());
log_postfix_event(arg.value(), r, "least-significant-bit");
return r;
}示例2: eval_gcd
inline typename enable_if_c<!is_trivial_cpp_int<cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> >::value>::type
eval_gcd(
cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& result,
const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& a,
const cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1>& b)
{
using default_ops::eval_lsb;
using default_ops::eval_is_zero;
using default_ops::eval_get_sign;
if(a.size() == 1)
{
eval_gcd(result, b, *a.limbs());
return;
}
if(b.size() == 1)
{
eval_gcd(result, a, *b.limbs());
return;
}
int shift;
cpp_int_backend<MinBits1, MaxBits1, SignType1, Checked1, Allocator1> u(a), v(b);
int s = eval_get_sign(u);
/* GCD(0,x) := x */
if(s < 0)
{
u.negate();
}
else if(s == 0)
{
result = v;
return;
}
s = eval_get_sign(v);
if(s < 0)
{
v.negate();
}
else if(s == 0)
{
result = u;
return;
}
/* Let shift := lg K, where K is the greatest power of 2
dividing both u and v. */
unsigned us = eval_lsb(u);
unsigned vs = eval_lsb(v);
shift = (std::min)(us, vs);
eval_right_shift(u, us);
eval_right_shift(v, vs);
do
{
/* Now u and v are both odd, so diff(u, v) is even.
Let u = min(u, v), v = diff(u, v)/2. */
s = u.compare(v);
if(s > 0)
u.swap(v);
if(s == 0)
break;
if(v.size() <= 2)
{
if(v.size() == 1)
u = integer_gcd_reduce(*v.limbs(), *u.limbs());
else
{
double_limb_type i, j;
i = v.limbs()[0] | (static_cast<double_limb_type>(v.limbs()[1]) << sizeof(limb_type) * CHAR_BIT);
j = (u.size() == 1) ? *u.limbs() : u.limbs()[0] | (static_cast<double_limb_type>(u.limbs()[1]) << sizeof(limb_type) * CHAR_BIT);
u = integer_gcd_reduce(i, j);
}
break;
}
eval_subtract(v, u);
vs = eval_lsb(v);
eval_right_shift(v, vs);
}
while(true);
result = u;
eval_left_shift(result, shift);
}示例3: eval_lsb
inline unsigned eval_lsb(const debug_adaptor<Backend>& arg)
{
using default_ops::eval_lsb;
return eval_lsb(arg.value());
}