Determines whether a matrix of any size is a unit matrix

"C and Pointers" chapter 8th programming exercises 4th:

Modify the Identity_matrix function in the previous question, which can be extended to an array to accept arbitrary-sized matrix parameters. The 1th parameter of the function should be an integer pointer, and you need a 2nd parameter to specify the size of the matrix.

1 /*2 * * Determine if a matrix is a unit matrix3 * * Matrix is arbitrary size4 */5 6#include <stdio.h>7 #defineSIZE 48 9 /*Ten * * Function accepts arbitrary size matrix parameters to determine if it is a unit matrix One * * Formal parameters: A * * The 1th parameter is an integer pointer, pointing to the first element in the matrix &matric[0][0] - * * The 2nd parameter is the size of a matrix - * * return: the * * is the unit matrix, returns 1 - * * Not a unit matrix, return 0 - */ - int  +Indentity_matrix_anysize (int*matrix,intmtx_size) - { +     intRow, col; A      for(row =0; Row < mtx_size; ++row) at          for(col =0; Col < mtx_size; ++Col) -         { -             if(row = = Col && * (Matrix + row * mtx_size + col)! =1 ) -                 return 0; -             if(Row! = Col && * (Matrix + row * mtx_size + col)! =0 ) -                 return 0; in         } -     return 1; to } +  - int the Main () * { $     intMatrix[size][size];Panax Notoginseng      -     intI, J; the      for(i =0; i < SIZE; ++i) +          for(j =0; J < SIZE; ++j) Ascanf"%d", &matrix[i][j]); the      +printf"%d", Indentity_matrix_anysize (matrix[0], SIZE)); -      $     return 0; $}

Determines whether a matrix of any size is a unit matrix