本文整理汇总了C++中typenameSpMat::pos方法的典型用法代码示例。如果您正苦于以下问题：C++ typenameSpMat::pos方法的具体用法？C++ typenameSpMat::pos怎么用？C++ typenameSpMat::pos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typenameSpMat的用法示例。
在下文中一共展示了typenameSpMat::pos方法的2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: stream_state
inline
void
arma_ostream::print_dense(std::ostream& o, const SpMat<eT>& m, const bool modify)
{
arma_extra_debug_sigprint();
const arma_ostream_state stream_state(o);
const uword m_n_rows = m.n_rows;
const uword m_n_cols = m.n_cols;
if(m.n_nonzero > 0)
{
const std::streamsize cell_width = modify ? modify_stream<eT>(o, m.begin(), m.n_nonzero) : o.width();
typename SpMat<eT>::const_iterator begin = m.begin();
if(m_n_cols > 0)
{
if(cell_width > 0)
{
// An efficient row_iterator would make this simpler and faster
for(uword row=0; row < m_n_rows; ++row)
{
for(uword col=0; col < m_n_cols; ++col)
{
// the cell width appears to be reset after each element is printed,
// hence we need to restore it
o.width(cell_width);
eT val = eT(0);
for(typename SpMat<eT>::const_iterator it = begin; it.pos() < m.n_nonzero; ++it)
{
if(it.row() == row && it.col() == col)
{
val = *it;
break;
}
}
arma_ostream::print_elem(o,eT(val), modify);
}
o << '\n';
}
}
else
{
// An efficient row_iterator would make this simpler and faster
for(uword row=0; row < m_n_rows; ++row)
{
for(uword col=0; col < m_n_cols; ++col)
{
eT val = eT(0);
for(typename SpMat<eT>::const_iterator it = begin; it.pos() < m.n_nonzero; ++it)
{
if(it.row() == row && it.col() == col)
{
val = *it;
break;
}
}
arma_ostream::print_elem(o,eT(val), modify);
o << ' ';
}
o << '\n';
}
}
}
}
else
{
if(m.n_elem == 0)
{
o << "[matrix size: " << m_n_rows << 'x' << m_n_cols << "]\n";
}
else
{
eT tmp[1];
tmp[0] = eT(0);
const std::streamsize cell_width = modify ? arma_ostream::modify_stream(o, &tmp[0], 1) : o.width();
for(uword row=0; row < m_n_rows; ++row)
{
for(uword col=0; col < m_n_cols; ++col)
{
o.width(cell_width);
arma_ostream::print_elem_zero<eT>(o, modify);
o << ' ';
}
o << '\n';
}
}
}
o.flush();
stream_state.restore(o);
//.........这里部分代码省略.........
示例2: eT
inline
std::streamsize
arma_ostream::modify_stream(std::ostream& o, typename SpMat<eT>::const_iterator begin, const uword n_elem, const typename arma_not_cx<eT>::result* junk)
{
arma_extra_debug_sigprint();
arma_ignore(junk);
o.unsetf(ios::showbase);
o.unsetf(ios::uppercase);
o.unsetf(ios::showpos);
o.fill(' ');
std::streamsize cell_width;
bool use_layout_B = false;
bool use_layout_C = false;
for(typename SpMat<eT>::const_iterator it = begin; it.pos() < n_elem; ++it)
{
const eT val = *it;
if(
val >= eT(+100) ||
( (is_signed<eT>::value == true) && (val <= eT(-100)) ) ||
( (is_non_integral<eT>::value == true) && (val > eT(0)) && (val <= eT(+1e-4)) ) ||
( (is_non_integral<eT>::value == true) && (is_signed<eT>::value == true) && (val < eT(0)) && (val >= eT(-1e-4)) )
)
{
use_layout_C = true;
break;
}
if(
(val >= eT(+10)) || ( (is_signed<eT>::value == true) && (val <= eT(-10)) )
)
{
use_layout_B = true;
}
}
if(use_layout_C == true)
{
o.setf(ios::scientific);
o.setf(ios::right);
o.unsetf(ios::fixed);
o.precision(4);
cell_width = 13;
}
else
if(use_layout_B == true)
{
o.unsetf(ios::scientific);
o.setf(ios::right);
o.setf(ios::fixed);
o.precision(4);
cell_width = 10;
}
else
{
o.unsetf(ios::scientific);
o.setf(ios::right);
o.setf(ios::fixed);
o.precision(4);
cell_width = 9;
}
return cell_width;
}