1 line
4.7 KiB
C++
1 line
4.7 KiB
C++
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/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
/* */
/* */
/* MV++ Numerical Matrix/Vector C++ Library */
/* MV++ Version 1.5 */
/* */
/* R. Pozo */
/* National Institute of Standards and Technology */
/* */
/* NOTICE */
/* */
/* Permission to use, copy, modify, and distribute this software and */
/* its documentation for any purpose and without fee is hereby granted */
/* provided that this permission notice appear in all copies and */
/* supporting documentation. */
/* */
/* Neither the Institution (National Institute of Standards and Technology) */
/* nor the author makes any representations about the suitability of this */
/* software for any purpose. This software is provided ``as is''without */
/* expressed or implied warranty. */
/* */
/*+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++*/
//
// tmat.cc Testing routine for MV++ matrix class
//
// Usage: <M> <N> <block-index start> <block-index end>
//
// (Suggest these to be relatively small positive numbers, as
// output is proportional to "length".)
//
// This test program is self-explanatory (there are diagnostics
// output message of what each step is performing)and excercise
// most of the MV_ColMat methods, thus providing examples of how
// these are used.
//
#include <iostream.h>
#include <stdlib.h>
#include "vecdefs.h"
#include MATRIX_H
// #include "systime.c"
// example function to zero-out a matrix: illustrates how to pass
// matrixes by "reference" (modifiable), as opposed to by "value"
//
void foo(MATRIX_int *Aptr)
{
MATRIX_int &A = *Aptr;
A = (int) 0; // equivalent to "Aptr->operator=(0);"
}
// example funciton to return MV_ColMats: (returns matrix + scalar)
//
MATRIX_int fexample(const MATRIX_int A, int s)
{
int M = A.size(0);
int N = A.size(1);
MATRIX_int B(M,N);
for (int j=0; j<N; j++)
for (int i=0; i<M; i++)
B(i,j) = A(i,j) + s;
return B;
}
int TestMat_int(int M, int N, int Istart, int Jstart, int Iend, int Jend)
{
int i,j;
cout << endl;
cout << "TestMat_int : " << endl;
cout << "Using M = " << M << " N = " << N <<
" Istart = " << Istart << " Iend = " << Iend <<
" Jstart = " << Jstart << " Jend = " << Jend << endl;
MATRIX_int C;
cout << " Test null constructor: MV_ColMat C() " << endl;
cout << C << endl;
MATRIX_int A(M,N);
cout << " Test MV_ColMat(int,int) constructor: MV_ColMat A(M,N) " << endl;
cout << " values should be uninitalized.. " << endl;
cout << A << endl;
MATRIX_int B(M,N, 3);
cout << " Test MV_ColMat(int, int, val) constructor: MV_ColMat B(N, 3.0) "
<< endl;
cout << " all values should be 3: " << endl;
cout << B << endl;
cout << " Test A(i,j) indexing, set A(i,j) = 100*j + i, and B(i) = -A(i,j)"
<< endl;
for (j=0; j<N; j++)
for (i=0; i<M; i++)
{
A(i,j) = 100*i+j;
B(i,j) = - A(i,j);
}
cout << " A " << endl;
cout << A << endl;
cout << " B " << endl;
cout << B << endl;
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