C and Pointer notes--multiplication of arrays

1 //Code by ZZLPP2#include <stdio.h>3#include <stdlib.h>4 5 voidMatrix_multiply (int(MS,int(MP,int*R,6                      int ConstXint ConstYint Constz);7 8 9 intMainvoid )Ten { One     //Initialize the original matrix A     intm1[3][1]={1,2,3}, -m2[1][3]={3,2,1}, -r[3][3]={{},{},{}}; the  -     intI, - J; -     //calling Functions +Matrix_multiply (*m1,*m2,*r,3,1,3); -     //print the resulting matrix +      for(i=0;i<3; i++ ) A     { at          for(j=0;j<3; j + + ) -         { -printf"%d", R[i][j]); -         } -printf"\ n"); -     } inSystem"Pause" ); -     return 0; to } +  - voidMatrix_multiply (int(MS,int*M2,int*R, the                      int ConstXint ConstYint Constz) * { $     intRow//corresponding to xPanax NotoginsengColumn//corresponds to Y -Direction//corresponds to Z the     int*m1_cpy, +*m2_cpy; A      for(row=0; row<x;row++ ) the     { +          for(direction=0;d irection<z;direction++ ) -         { $m1_cpy=m1+row*y; $m2_cpy=m2+direction; -              for(column=0; column<y;column++ ) -             { the*r+= (*m1_cpy) * (*m2_cpy); -m1_cpy+=1;Wuyim2_cpy+=direction; the             } -r++; Wu         } -     } About}

This code is mainly familiar with multidimensional arrays, in the function of the time to pay attention to the method, while operating multidimensional arrays in the function also requires a method, if the use of the following table reference is not feasible, you must set a special variable as the following table (Row,column,direction). Of course, my understanding is one-sided, many Haihan.

　　

C and Pointer notes--multiplication of arrays