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AnswerRe: local pointer need to initialize or not? Pin
jschell8-Dec-17 8:43
jschell8-Dec-17 8:43 
GeneralRe: local pointer need to initialize or not? Pin
samzcs8-Dec-17 16:15
samzcs8-Dec-17 16:15 
GeneralRe: local pointer need to initialize or not? Pin
jschell11-Dec-17 7:03
jschell11-Dec-17 7:03 
AnswerRe: local pointer need to initialize or not? Pin
CPallini8-Dec-17 11:20
mveCPallini8-Dec-17 11:20 
QuestionHow to make global 2D array using vectors Pin
User 135094507-Dec-17 23:14
professionalUser 135094507-Dec-17 23:14 
AnswerRe: How to make global 2D array using vectors Pin
Richard MacCutchan8-Dec-17 0:04
mveRichard MacCutchan8-Dec-17 0:04 
AnswerRe: How to make global 2D array using vectors Pin
Jochen Arndt8-Dec-17 0:05
professionalJochen Arndt8-Dec-17 0:05 
AnswerRe: How to make global 2D array using vectors Pin
CPallini8-Dec-17 6:14
mveCPallini8-Dec-17 6:14 
As suggested, don't use globals. Try, for instance
C++
#include <vector>
#include <iostream>
#include <iomanip>
#include <string>

using namespace std;

class Matrix
{
  int R, C;
  vector <vector <int> > m;
public:
  Matrix(int r, int c):R(r),C(c)
  {
    for (int r = 0; r<R; ++r)
    {
      m.push_back(vector <int >());
      for (int c = 0; c<C; ++c)
        m[r].push_back(c+1);
    }
  }
  friend ostream & operator << (ostream & os, const Matrix & mat);
};


ostream & operator << (ostream & os, const Matrix & mat)
{
  for (int r = 0; r<mat.R; ++r)
  {
    for (int c = 0; c<mat.C; ++c)
      os << setw(4) << mat.m[r][c];
    os << endl;
  }
  return os;
}

int main(int argc, char * argv[])
{
  int rows=1, cols=1;

  if ( argc >= 3)
  {
    rows = stoi(argv[1]);
    cols = stoi(argv[2]);
  }

  Matrix m(rows,cols);
  cout << m << endl;
}

GeneralRe: How to make global 2D array using vectors Pin
User 1350945013-Dec-17 7:46
professionalUser 1350945013-Dec-17 7:46 
GeneralRe: How to make global 2D array using vectors Pin
CPallini13-Dec-17 8:11
mveCPallini13-Dec-17 8:11 
QuestionSystem tray Pin
justin12046-Dec-17 22:51
justin12046-Dec-17 22:51 
SuggestionRe: System tray Pin
Jochen Arndt6-Dec-17 23:15
professionalJochen Arndt6-Dec-17 23:15 
QuestionHow to pass size of an array from command line Pin
User 135094506-Dec-17 18:09
professionalUser 135094506-Dec-17 18:09 
AnswerRe: How to pass size of an array from command line Pin
Rick York6-Dec-17 18:52
mveRick York6-Dec-17 18:52 
GeneralRe: How to pass size of an array from command line Pin
User 135094506-Dec-17 20:07
professionalUser 135094506-Dec-17 20:07 
GeneralRe: How to pass size of an array from command line Pin
Rick York6-Dec-17 20:31
mveRick York6-Dec-17 20:31 
GeneralRe: How to pass size of an array from command line Pin
User 135094506-Dec-17 20:32
professionalUser 135094506-Dec-17 20:32 
GeneralRe: How to pass size of an array from command line Pin
CPallini7-Dec-17 3:19
mveCPallini7-Dec-17 3:19 
QuestionCEdit::LineLength returning zero Pin
ForNow6-Dec-17 13:16
ForNow6-Dec-17 13:16 
AnswerRe: CEdit::LineLength returning zero Pin
Rick York6-Dec-17 14:41
mveRick York6-Dec-17 14:41 
GeneralRe: CEdit::LineLength returning zero Pin
ForNow6-Dec-17 15:51
ForNow6-Dec-17 15:51 
GeneralRe: CEdit::LineLength returning zero Pin
Rick York6-Dec-17 19:00
mveRick York6-Dec-17 19:00 
GeneralRe: CEdit::LineLength returning zero Pin
ForNow6-Dec-17 20:39
ForNow6-Dec-17 20:39 
QuestionRe: CEdit::LineLength returning zero Pin
Richard MacCutchan6-Dec-17 22:14
mveRichard MacCutchan6-Dec-17 22:14 
AnswerRe: CEdit::LineLength returning zero Pin
ForNow6-Dec-17 23:49
ForNow6-Dec-17 23:49 

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