Classes | |
class | op_neg |
'negate matrix' operation More... | |
Functions | |
template<typename T1 > | |
static void | op_neg::apply (Mat< typename T1::elem_type > &out, const Op< T1, op_neg > &in) |
Negate all element of a matrix and store the result in a dense matrix. |
void op_neg::apply | ( | Mat< typename T1::elem_type > & | out, | |
const Op< T1, op_neg > & | in | |||
) | [inline, static, inherited] |
Negate all element of a matrix and store the result in a dense matrix.
Definition at line 24 of file op_neg_meat.hpp.
References Op< T1, op_type >::m, Mat< eT >::mem, Mat< eT >::memptr(), Mat< eT >::n_cols, Mat< eT >::n_elem, Mat< eT >::n_rows, and Mat< eT >::set_size().
00025 { 00026 arma_extra_debug_sigprint(); 00027 00028 typedef typename T1::elem_type eT; 00029 00030 const unwrap<T1> tmp(in.m); 00031 const Mat<eT>& X = tmp.M; 00032 00033 // no alias problems 00034 out.set_size(X.n_rows, X.n_cols); 00035 00036 const eT* X_mem = X.mem; 00037 eT* out_mem = out.memptr(); 00038 00039 00040 for(u32 i=0; i<X.n_elem; ++i) 00041 { 00042 out_mem[i] = -X_mem[i]; 00043 } 00044 00045 }