/*! dcovector constructor to cast _dcovector */
inline dcovector::dcovector(const _dcovector& vec)
{VERBOSE_REPORT;
//////// initialize ////////
l =vec.l;
cap =vec.cap;
array =vec.array;
vec.nullify();
}
/*! return a transposed row vector */
inline drovector t(const _dcovector& covec)
{ VERBOSE_REPORT;
_drovector rovec;
rovec.l =covec.l;
rovec.cap =covec.cap;
delete [] rovec.array;
rovec.array =covec.array;
covec.nullify();
return rovec;
}