Queues with checks and customers

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Queues with checks and customers

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#1 by (0 votes)

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I want to create a queue or check pool .. like a Queue standby (FIFO) and I have some difficulties. For now the code I have is giving me some errors.

I'm having gender errors:

Item.h:16:16: warning: struct has no members [-Wpedantic]
Item.c:22:8: error: ‘struct cheque’ has no member named ‘refc’

Code:

#ifndef _ITEM_
#define _ITEM_ 

#include <stdio.h>
#include <stdlib.h>
#include <string.h>

   /* A chave pela qual se arruma os elementos e a refc*/
    #define key (a) (a != NULL ? a->refc : "")  

    #define less (a,b) (strcmp (a,b)<0)
    #define eq(a,b) (strcmp (a,b) == 0)
    #define NULLitem NULL

typedef long int* Key;                  /* Definir a chave, ponteiro */

typedef struct cheque {                 /* Nome da estrutura */
    int valor
    long int refe
    long int refb
    long int* refc
}*Item;     /* O Item vai ser um ponteiro para a estrutura */

Item newItem (int valor, long int refe, long int refb, long int* refc);
void deleteItem (Item a);
void visitItem (Item a);

#endif

c

asked by anonymous 11.05.2015 / 11:54

1 answer

Base MySQL and PHP [closed] The power of javaScript [closed]

score 0 · Answer 1

I've already discovered:

typedef struct cheque {                 /* Nome da estrutura */
    int valor;
    long int refe;
    long int refb;
    long int* refc;


}*Item;                         /* O Item vai ser um ponteiro para a estrutura */

But now I'm having another type of error:

Item.c: In function 'newItem': Item.c: 14: 2: warning: implicit   declaration of function 'strdup' [-Wimplicit-function-declaration]

x-> refc = strdup (refc); ^ Item.c: 14: 10: warning: assignment makes   pointer from integer without cast [enabled by default] x-> refc =   strdup (refc);

Item.c: In function 'visitItem': Item.c: 34: 2: warning: format '% p' expects argument of type 'void', but argument 2 has type 'long int *' [-Wformat = ] printf ("refc:% p \ n", a-> refc);

    #ifndef _ITEM_
    #define _ITEM_ 

    #include <stdio.h>
    #include <stdlib.h>
    #include <string.h>

    #define key (a) (a != NULL ? a->refc : "")      
    #define less (a,b) (strcmp (a,b)<0)
    #define eq(a,b) (strcmp (a,b) == 0)
    #define NULLitem NULL

    typedef long int* Key;                  

    typedef struct cheque {                 
        int valor
        long int refe
        long int refb
        long int* refc

    }*Item;                         

    Item newItem (int valor, long int refe, long int refb, long int* refc);
    void deleteItem (Item a);
    void visitItem (Item a);

    #endif


----------
#include "Item.h"
#include <stdio.h>
#include <stdlib.h>


Item newItem (int valor, long int refe, long int refb, long int refc)
{

    Item x = (Item) malloc (sizeof(struct cheque));

    x->valor = valor;
    x->refe = refe;
    x->refb = refb;
    x->refc = strdup(refc);

    return x;
}


void deleteItem (Item a)
{
    free(a->refc);
    free(a);

}


void visitItem (Item a)
{

    printf("valor: %d\n", a->valor);
    printf("refe: %ld\n", a->refe);
    printf("refb: %ld\n", a->refb);
    printf("refc: %p\n", a->refc);

}