本文整理汇总了C++中Permutation::begin方法的典型用法代码示例。如果您正苦于以下问题:C++ Permutation::begin方法的具体用法?C++ Permutation::begin怎么用?C++ Permutation::begin使用的例子?那么, 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Permutation
的用法示例。
在下文中一共展示了Permutation::begin方法的4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: union_perm
void union_perm(Permutation<element_type, rank_type> &sigma, Permutation<element_type, rank_type> &tau){
for (typename Permutation<element_type, rank_type>::iterator it = tau.begin(); it != tau.end(); ++it)
{
sigma.addElement(it->first, sigma(it->first));
}
}
示例2: getPermutation
void ColumnFixedString::getPermutation(bool reverse, size_t limit, int /*nan_direction_hint*/, Permutation & res) const
{
size_t s = size();
res.resize(s);
for (size_t i = 0; i < s; ++i)
res[i] = i;
if (limit >= s)
limit = 0;
if (limit)
{
if (reverse)
std::partial_sort(res.begin(), res.begin() + limit, res.end(), less<false>(*this));
else
std::partial_sort(res.begin(), res.begin() + limit, res.end(), less<true>(*this));
}
else
{
if (reverse)
std::sort(res.begin(), res.end(), less<false>(*this));
else
std::sort(res.begin(), res.end(), less<true>(*this));
}
}
示例3: getPermutation
void ColumnTuple::getPermutation(bool reverse, size_t limit, int nan_direction_hint, Permutation & res) const
{
size_t rows = size();
res.resize(rows);
for (size_t i = 0; i < rows; ++i)
res[i] = i;
if (limit >= rows)
limit = 0;
if (limit)
{
if (reverse)
std::partial_sort(res.begin(), res.begin() + limit, res.end(), Less<false>(columns, nan_direction_hint));
else
std::partial_sort(res.begin(), res.begin() + limit, res.end(), Less<true>(columns, nan_direction_hint));
}
else
{
if (reverse)
std::sort(res.begin(), res.end(), Less<false>(columns, nan_direction_hint));
else
std::sort(res.begin(), res.end(), Less<true>(columns, nan_direction_hint));
}
}
示例4: getPermutationWithCollation
void ColumnString::getPermutationWithCollation(const Collator & collator, bool reverse, size_t limit, Permutation & res) const
{
size_t s = offsets.size();
res.resize(s);
for (size_t i = 0; i < s; ++i)
res[i] = i;
if (limit >= s)
limit = 0;
if (limit)
{
if (reverse)
std::partial_sort(res.begin(), res.begin() + limit, res.end(), lessWithCollation<false>(*this, collator));
else
std::partial_sort(res.begin(), res.begin() + limit, res.end(), lessWithCollation<true>(*this, collator));
}
else
{
if (reverse)
std::sort(res.begin(), res.end(), lessWithCollation<false>(*this, collator));
else
std::sort(res.begin(), res.end(), lessWithCollation<true>(*this, collator));
}
}