Thread: 2D structure arrays: passing to function, declaration Q:

This code appears to work fine. That - in spite of ongoing STRANGE 'scanf()' behavior. (to which I seem to have found a 'fix').

I'm struggling with the function declaration:
void show_motorcycledat(struct motorcycles (*)[2]);

and use:
void show_motorcycledat(struct motorcycles (*pmc)[2])

Why not use both dimensions of the 2D array: "struct motorcycles (*)[3][2]" ?

Further, I thought I'd be using "pmc[row][col]->" for member access rather than "pmc[row][col]." as seen in function body. Thanks.

Code:

#include <stdio.h>

#define MAXROW  3
#define MAXCOL    2

#define SLENGTH       80
enum {RET_ERR = -1,  RET_OK};

struct motorcycles {
     char   name[25];
     int      size;    
     float  weight;
     };

char G_inst[SLENGTH];

void show_motorcycledat(struct motorcycles (*)[2]);

int main(void)  {
     int                                 c;                                                         // VOODOO 'scanf()' fix
     int                                 entrycount;
     int                                 row;
     int                                 col;

     char                              letrs[MAXROW][MAXCOL];
     int                                 nums[MAXROW][MAXCOL];
     struct motorcycles mc[MAXROW][MAXCOL];

     printf("\nPlease enter %d lines.\n", MAXROW * MAXCOL);
     printf("Each line:  LETTER <sp> NUMBER <sp> Motorcycle length <sp> MC weight <sp> MC name\n\n");

     entrycount = 0;
     for (row = 0; row < MAXROW; row++)  {
          for (col = 0; col < MAXCOL;  col++)  {
               printf("Entry %d:   ", ++entrycount);
               scanf("%c %d %d %f %[^\n]", &letrs[row][col], &nums[row][col],
                    &mc[row][col].size, &mc[row][col].weight, mc[row][col].name);

               while ((c = getchar()) != '\n' && c != EOF );        // VOODOO code for 'scanf()' fix
               }          
          }

     entrycount = 0;
     printf("\nResults:\n\n");
     for (row = 0; row < MAXROW; row++)  {
          for (col = 0; col < MAXCOL;  col++)  {
               printf("%d:  (R: %d . C: %d)  %c %d %d %.2f %s\n", ++entrycount, row, col, letrs[row][col], nums[row][col],
                    mc[row][col].size, mc[row][col].weight, mc[row][col].name);
               }          
          }

     show_motorcycledat(mc);

     printf("\n");
     return(RET_OK);
     }

void show_motorcycledat(struct motorcycles (*pmc)[2])   {
     int row;
     int col;

     printf("\nResults using struct *:\n\n");
     for (row = 0; row < MAXROW; row++)  {
          for (col = 0; col < MAXCOL;  col++)  {
               printf("(R: %d . C: %d) %d %.2f %s\n", row, col, pmc[row][col].size, pmc[row][col].weight, pmc[row][col].name);
               }          
          }
     }