How to access data from an array of strings? C

Question

I am having lot of problems with my C code. I am saving data into my array with this function:

/**
* Insert Data into array
* @param char[] pointer
*/
void insertData(char **data) {
    int i;

for (i = 0; i < 2; i++) {
      data[i] = malloc(10000);
      printf("Nombre del paciente %d: ", i+1);
      scanf("%s", &data[i][0]);
      printf("Habitacion: ");
      scanf("%s", &data[i][1]);
      printf("Cama: ");
      scanf("%s", &data[i][2]);
      free(*data);
    }
}

My variable data is : char data[2][3];

And I'm trying to show this data with the next function:

void mostrarResultados(char **data) {
int i,j;
for (i = 0; i < 2; i++) {
    printf("\n");
     for (j = 0; j < 3; j++) {
        printf("%c ", data[i,j], **data);
     }
    }
}

But the console return me weird characters:

What am I doing wrong?

To these functions I am calling them this way:

    //First menu
    do{
        switch (option){
            case 1:
                insertData(data);
                setFirstTime(false);
                mostrarResultados(data);
                break;
            case 2:
                exit(0);
                break;
        }
    } while (option == 0);
}

Thank you very much for your help!

baliman · Accepted Answer · 2016-11-20 19:08:42Z

1

I think you better can use a struct to hold the data. Someting like

Struct data {
   char nombre[32];
   Char habitacion[32];
   char cama[32];
}

And malloc the struct malloc(sizeof(struct data) * nr of struct you want)

answered Nov 20, 2016 at 19:08

baliman

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2 Comments

Sermanes Over a year ago

Yes, but I have to declare 20 structs new, because I am doing an example with an array[2] but in the future i want to do with 20, and I have to do 20 struct Data Data1; etc...

baliman Over a year ago

But you can make an array of structs

Roland Illig · Accepted Answer · 2016-11-20 19:31:52Z

0

When programming in C or C++, you must enable compiler warnings, understand them and fix them properly. Everything else is irresponsible.

In this case, the compiler will warn about the printf call, since you are passing the wrong type (and number) of arguments.

answered Nov 20, 2016 at 19:31

Roland Illig

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