gcc/testsuite/gcc.misc-tests/matrix1.c

   1 /*       Matrix operations      */
   2
   3 #define BOUND 100
   4
   5 int a[BOUND][BOUND],b[BOUND][BOUND],c[BOUND][BOUND];
   6
   7 main()
   8 {
   9 int i,j,k;
  10
  11
  12
  13         for (i=0; i<BOUND; i++)
  14         {
  15                 for (j=0; j<BOUND; j++)
  16                 {
  17                         a[i][j] = 1;
  18                         b[i][j] = 1;
  19                 }
  20         }
  21         for (i=0; i<BOUND; i++)
  22         {
  23                 for (j=0; j<BOUND; j++)
  24                 {
  25                         c[i][j] = 0;
  26                         for (k=0; k<BOUND; k++)
  27                         {
  28                                 c[i][j] = c[i][j] + a[i][k] * b[k][j];
  29                         }
  30                 }
  31         }
  32         for (i=0; i<BOUND; i++)
  33         {
  34                 for (j=0; j<BOUND; j++)
  35                 {
  36                         if (c[i][j] != BOUND)
  37                         {
  38                                 puts("ERROR");
  39                                 return 0;
  40                         }
  41                 }
  42         }
  43         i=5;
  44
  45         return 0;
  46 }