Nov 23, 2013 at 2:29pm UTC
Hi.
My program appeared to give segmentation fault on my windows, but it doesn't execute at all in my ubuntu. Why?
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#include <iostream>
using namespace std;
/*******************************
* copyright © 2013 Soheil Hooshdaran
* The purpose of this program is to multiply the two arrays 'a' and 'b' and store the results
* into the array 'c'
******************************/
main()
{
int n, m, p; //Used as the dimensions of the arrays
cout << "Please enter the number of rows of the first array:" << endl;
cin >> n;
cout << "Please enter the number of columns of the first array:" << endl;
cin >> m;
int **a, **b, **c;
/***********Creating an n*m array**********************/
*a = new int [n];
int dim; //used to traverse the rows of the array
int i; //used to traverse the columns of the array
for (dim=0;dim<n;++m)
a[dim] = new int [m];
/***********Creating an m*p array**********************/
*b = new int [m];
for (dim=0;dim<m;++dim)
b[dim] = new int [p];
/***********Creating an n*p array**********************/
*c = new int [n];
for (dim=0;dim<n;++dim)
c[dim] = new int [p];
/*********reading arrays************/
/********reading array a***********/
for (dim=0;dim<n;++m)
{
cout << "please enter the elements of row " << dim
<<" of array 'A' seperated by spaces:" << endl;
for (i=0;i<m;++i)
cin >> a[dim][i];
}
/********reading array b***********/
for (dim=0;dim<n;++dim)
{
cout << "please enter the elements of row " << dim
<<" of array 'B' seperated by spaces:" << endl;
for (i=0;i<p;++i)
cin >> b[dim][i];
}
cout << "*****Array A**********" ;
for (dim=0;dim<n;dim++)
{
for (i=0;i<p;++i)
cout << a[dim][i];
if ( dim == (n-1) )
cout << endl;
}
cout << "*****Array B**********" ;
for (dim=0;dim<n;dim++)
{
for (i=0;i<p;++i)
cout << a[dim][i];
if ( dim == (n-1) )
cout << endl;
}
while (1);
return 0;
}
I g++'ed my program and then entered ./a.out, but nothing happened
EDIT: It doesn't execute ./a.out at all.
see:
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soheil@soheil-desktop:/media/2318-8E84/MS_Shirazu/Parallel_algorithms/test_suit$ ./a.out
bash: ./a.out: Permission denied
soheil@soheil-desktop:/media/2318-8E84/MS_Shirazu/Parallel_algorithms/test_suit$ sudo ./a.out
[sudo] password for soheil:
sudo: ./a.out: command not found
Last edited on Nov 23, 2013 at 2:35pm UTC