Thread: void function(type **, type *) // more info. PLEASE HELP

My problem is when I call function putfirst.
prototype of putfirst: void putfirst(nodo**, nodo*);
At the end of the code is function putfirst

Code:

global declaration of type

typedef struct nodo {
			  int codigo;
			  char pro[30];
			  float pre;
			  struct nodo *siguiente;
			  }nodo;

local pointers
nodo *h=NULL, *x;
x=(nodo *)malloc(sizeof(nodo));

produ=fopen("c:/producto.dat", "rt");

scanf("%d",&producto);
while(producto!=255)
	{
	rewind(produ);
	x=(nodo *)malloc(sizeof(nodo));
	while(!feof(produ))
		{
		fread(&x->codigo,2,1,produ);
		fread(x->pro,30,1,produ);
		fread(&x->pre,sizeof(float),1,produ);
		if(x->codigo==producto)
			{
			printf("\nproducto encontrado");
			break;
			}
		if(feof(produ))
			{
			printf("\nNo se encontro el producto, ingreselo manualmente");
			printf("\nDescripcion: ");
			scanf("%s",x->pro);
			printf("\nPrecio: ");
			scanf("%f",x->pre);
			}
		putfirst(&h,x);
		scanf("%d",&producto);
	   }


void putfirst(nodo **ph, nodo *p)
{
p->siguiente=*ph;
*ph=p;
return;
}

code tag's added by your friendly mod

I ve solved the problem, it was that structure nodo was repeated gobal and local, and the compiler went crazy with that,
Thanks to all wo had helped.
Seek n Destroy