Trying to use pointers for additions and comparisons












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I have a class where I need to write a matrice, for that purpose we use pointers to keep track of the row and column of the leading element. In any case, my issue is that I am trying to use a row and column pointers. However, the code crashes every time either from trying to do a comparison or from addition with an integer value:



bool find_leading_element(double a[M], int n, int m, int * row, int * column) {
int smallest_leading_num, smallest_x, smallest_y, counter = 0;

for(; (*column) < m; (*column) += 1)
{
for(; (*row) < n; (*row) += 1)
{
//meaningless code here, program is crashing before
}
}

return false;


I declared these pointers in a previous function like so:



int * row = 0;
int * column = 0;









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    0















    I have a class where I need to write a matrice, for that purpose we use pointers to keep track of the row and column of the leading element. In any case, my issue is that I am trying to use a row and column pointers. However, the code crashes every time either from trying to do a comparison or from addition with an integer value:



    bool find_leading_element(double a[M], int n, int m, int * row, int * column) {
    int smallest_leading_num, smallest_x, smallest_y, counter = 0;

    for(; (*column) < m; (*column) += 1)
    {
    for(; (*row) < n; (*row) += 1)
    {
    //meaningless code here, program is crashing before
    }
    }

    return false;


    I declared these pointers in a previous function like so:



    int * row = 0;
    int * column = 0;









    share|improve this question



























      0












      0








      0








      I have a class where I need to write a matrice, for that purpose we use pointers to keep track of the row and column of the leading element. In any case, my issue is that I am trying to use a row and column pointers. However, the code crashes every time either from trying to do a comparison or from addition with an integer value:



      bool find_leading_element(double a[M], int n, int m, int * row, int * column) {
      int smallest_leading_num, smallest_x, smallest_y, counter = 0;

      for(; (*column) < m; (*column) += 1)
      {
      for(; (*row) < n; (*row) += 1)
      {
      //meaningless code here, program is crashing before
      }
      }

      return false;


      I declared these pointers in a previous function like so:



      int * row = 0;
      int * column = 0;









      share|improve this question
















      I have a class where I need to write a matrice, for that purpose we use pointers to keep track of the row and column of the leading element. In any case, my issue is that I am trying to use a row and column pointers. However, the code crashes every time either from trying to do a comparison or from addition with an integer value:



      bool find_leading_element(double a[M], int n, int m, int * row, int * column) {
      int smallest_leading_num, smallest_x, smallest_y, counter = 0;

      for(; (*column) < m; (*column) += 1)
      {
      for(; (*row) < n; (*row) += 1)
      {
      //meaningless code here, program is crashing before
      }
      }

      return false;


      I declared these pointers in a previous function like so:



      int * row = 0;
      int * column = 0;






      pointers int






      share|improve this question















      share|improve this question













      share|improve this question




      share|improve this question








      edited Jan 2 at 17:03









      marc_s

      581k13011221268




      581k13011221268










      asked Jan 2 at 16:59









      Ziv RigerZiv Riger

      12




      12
























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