Struct Use

[Prado]

Dear alls,

I'm a new user in Labwindowsand I've problem with the Structs,

I would like to make (and use) a struct

typedef struct
 {
 char mau[30];
 double valor;
 } estructura;  

estructura *estruc[10];

But I don't know what happens, It isnot working properly.

I would like to define a struct with

double valor and char mau[30].

But after to this, I need 10 times of this struct (I don't know if Is it clear?).

For example, Is it possible to use:

estruc[1]->mau="Test";

estruc[1]->valor=123.12;

estruc[2]->mau="Test2";

estruc[2]->valor=999.99;

Do I need the malloc

[RobertoBozzolo]

With some little adjustment your code should work properly.

When defining the struct:

typedef struct {
 char mau[30];
 double valor;
} estructura;  

estructura *estruc;

When allocating memory for the struct:

estruc = calloc (10, sizeof (estructura));

I do prefere calloc to malloc since calloc inizializes all fields to zero.

When using struct elements:

strcpy (estruc[0].mau, "Test");

estruc[0].valor = 123.12;

Hope this helps

Roberto