SubMatrix< T > Class Template Reference

#include <ftmpl_matrix.h>

Public Member Functions
	SubMatrix (const SubMatrix< T > &S)
SubMatrix< T > &	operator= (const SubMatrix< T > &S)
SubMatrix< T > &	operator= (const Matrix< T > &S)
	operator Matrix< T > () const
T	operator[] (int i) const
T &	operator[] (int i)

Private Member Functions
	SubMatrix (int rmin, int rmax, int cmin, int cmax, const Matrix< T > &m)

Private Attributes
int	r_min
int	r_max
int	c_min
int	c_max
Matrix< T > &	M

Friends
class	Matrix< T >

Detailed Description

template<class T>
class SubMatrix< T >

Definition at line 71 of file ftmpl_matrix.h.

Constructor & Destructor Documentation

SubMatrix() [1/2]

template<class T >

SubMatrix< T >::SubMatrix ( int  rmin, int  rmax, int  cmin, int  cmax, const Matrix< T > &  m  )

private

Definition at line 231 of file ftmpl_matrix.cc.

: r_min(rmin), r_max(rmax), c_min(cmin), c_max(cmax), M((Matrix<T>&)m) {}

SubMatrix() [2/2]

template<class T >

SubMatrix< T >::SubMatrix

(

const SubMatrix< T > &

S

)

Definition at line 234 of file ftmpl_matrix.cc.

: r_min(S.r_min), r_max(S.r_max), c_min(S.c_min), c_max(S.c_max), M(S.M) {}

Member Function Documentation

operator Matrix< T >()

template<class T >

SubMatrix< T >::operator Matrix< T >

Definition at line 287 of file ftmpl_matrix.cc.

{
    Matrix<T> res( r_max - r_min + 1, c_max - c_min + 1 );
    int i, j;
    int n = r_max - r_min + 1, m = c_max - c_min + 1;
    for ( i = 0; i < n; i++ )
        for ( j = 0; j < m; j++ )
            res.elems[i][j] = M.elems[r_min+i-1][c_min+j-1];
    return res;
}

operator=() [1/2]

template<class T >

SubMatrix< T > & SubMatrix< T >::operator=

(

const Matrix< T > &

S

)

Definition at line 237 of file ftmpl_matrix.cc.

{
    ASSERT( r_max - r_min + 1 == S.NR && c_max - c_min + 1 == S.NC, "incompatible matrices" );
    if ( M.elems != S.elems ) {
        int i, j;
        for ( i = 0; i < S.NR; i++ )
            for ( j = 0; j < S.NC; j++ )
                M.elems[r_min+i-1][c_min+j-1] = S.elems[i][j];
    }
    return *this;
}

operator=() [2/2]

template<class T >

SubMatrix< T > & SubMatrix< T >::operator=

(

const SubMatrix< T > &

S

)

Definition at line 250 of file ftmpl_matrix.cc.

{
    ASSERT( r_max - r_min == S.r_max - S.r_min && c_max - c_min == S.c_max - S.c_min, "incompatible matrices" );
    int i, j, n, m;
    n = r_max - r_min + 1;
    m = c_max - c_min + 1;
    if ( M.elems == S.M.elems ) {
        if ( r_min < S.r_min ) {
            for ( i = 0; i < n; i++ )
                for ( j = 0; j < m; j++ )
                    M.elems[r_min+i-1][c_min+j-1] = S.M.elems[S.r_min+i-1][S.c_min+j-1];
        }
        else if ( r_min > S.r_min ) {
            for ( i = n-1; i >= 0; i-- )
                for ( j = 0; j < m; j++ )
                    M.elems[r_min+i-1][c_min+j-1] = S.M.elems[S.r_min+i-1][S.c_min+j-1];
        }
        else if ( c_min < S.c_min ) {
            for ( j = 0; j < m; j++ )
                for ( i = 0; i < n; i++ )
                    M.elems[r_min+i-1][c_min+j-1] = S.M.elems[S.r_min+i-1][S.c_min+j-1];
        }
        else if ( c_min > S.c_min ) {
            for ( j = m-1; j >= 0; j-- )
                for ( i = 0; i < n; i++ )
                    M.elems[r_min+i-1][c_min+j-1] = S.M.elems[S.r_min+i-1][S.c_min+j-1];
        }
    }
    else {
        for ( i = 0; i < n; i++ )
            for ( j = 0; j < m; j++ )
                M.elems[r_min+i-1][c_min+j-1] = S.M.elems[S.r_min+i-1][S.c_min+j-1];
    }
    return *this;
}

operator[]() [1/2]

template<class T >

T & SubMatrix< T >::operator[]

(

int

i

)

Definition at line 306 of file ftmpl_matrix.cc.

{
    ASSERT( r_min == r_max && i >= c_min && i <= c_max, "illegal index" );
    return M.elems[r_min-1][i-1];
}

operator[]() [2/2]

template<class T >

T SubMatrix< T >::operator[]

(

int

i

)

const

Definition at line 299 of file ftmpl_matrix.cc.

{
    ASSERT( r_min == r_max && i >= c_min && i <= c_max, "illegal index" );
    return M.elems[r_min-1][i-1];
}

Friends And Related Function Documentation

Matrix< T >

template<class T >

friend class Matrix< T >

friend

Definition at line 84 of file ftmpl_matrix.h.

Field Documentation

c_max

template<class T >

int SubMatrix< T >::c_max

private

Definition at line 74 of file ftmpl_matrix.h.

c_min

template<class T >

int SubMatrix< T >::c_min

private

Definition at line 74 of file ftmpl_matrix.h.

M

template<class T >

Matrix<T>& SubMatrix< T >::M

private

Definition at line 75 of file ftmpl_matrix.h.

r_max

template<class T >

int SubMatrix< T >::r_max

private

Definition at line 74 of file ftmpl_matrix.h.

r_min

template<class T >

int SubMatrix< T >::r_min

private

Definition at line 74 of file ftmpl_matrix.h.

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The documentation for this class was generated from the following files:

• factory/include/factory/templates/ftmpl_matrix.h
• factory/templates/ftmpl_matrix.cc