Thread: Porblem with structures and pointers

Hello

I wrote a program where I used pointers to point to a structure within a function.

Code:

typedef struct{
  float Fish;
  float Cotton;
  float Wood;
  float Coco;
  float Sugar;
  float Guns;
  float Textiles;
  float Tobacco;
  float Wine;
}Goods_g;

But the problem is that I did calculations in a different function and assigned each element in the structure a value.

Code:

int DisplayPort(Goods_g *G, float variables[])
{ 
  G->Fish   = 50*variables[0];
  G->Cotton = 80*variables[1];
  G->Wood = 100*variables[2];
  G->Coco = 140*variables[3];
  G->Sugar = 350*variables[4];
  G->Guns = 700*variables[5];
  G->Textiles =1350*variables[6];
  G->Tobacco =1900*variables[7];
  G->Wine =2150*variables[8];
}

I want to use the values assigned to the elements in this function in another function. I don't know how to do so. Any help would be appriciated.

You can use a pointer just like you do.

Code:

struct Goods_g goods;

DisplayPort(&goods, your_floats);

Otherfunction(goods); // will use "goods" populated with values from DisplayPort -function

Sample code which would do your job

Code:

#include <stdio.h>

struct node
{ int num; };

void Init(struct node *no)
{  no->num = 10; }

void firstchange(struct node *no)
{  no->num = 20; }
     
int main()
{
    struct node tempnode;
    
    Init(&tempnode);
    firstchange(&tempnode);
    
    printf("&#37;d", tempnode.num);
    
    getchar();
    return 0;
}

ssharish