Pass values by reference C

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Pass values by reference C

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#1 by (1 votes)

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I have to make a program with a menu of options that allows me to read a student's information, write the name and the phone after entering their student number and determine how many students are older than an age entered by the user. The program runs, but it does not record the data to me. I would like to know if you can help me with this problem !!

#include <stdio.h>

struct aluno{
    int numero;
    char nome[100];
    char morada[100];
    int idade;
    int telefone;
};

void infoPerson(struct aluno *Turma, int *i) {


    for (int i = 0; i < 50; i++) {
        printf("Introduza o número \n");
        scanf(" %d", &Turma->numero);
        printf("Introduza a idade \n");
        scanf(" %d", &Turma->idade);
        printf("Introduza o telefone \n");
        scanf(" %d", &Turma->telefone);
        printf("Introduza o nome \n");
        scanf(" %s", &Turma->nome[100]);
        printf("Introduza a morada \n");
        scanf(" %s", &Turma->morada[100]);
    }
}

int main() {
    int opc;
    int i = 0;
    struct aluno *Turma[2];
    do{
        do{
            printf("1 - Introduzir alunos\n");
            printf("2 - Teste\n");
            printf("3 - Teste\n");
            scanf("%d", &opc);
        } while (opc < 0 || opc > 3);
        switch (opc){
            case 1:
                infoPerson(Turma, &i);
                break;
            case 2:
                printf("\n");
                break;
            case 3:
                printf("\n");
                break;
            default:
                printf("Teste\n");
        }
    } while (opc < 0 || opc > 3);
}

c struct

asked by anonymous 15.02.2018 / 17:39

1 answer

Variable losing value in php Transform array records into another multidimensional array

score 1 · Answer 1

The code has several errors, I think that's what you want:

#include <stdio.h>

typedef struct {
    int numero;
    char nome[100];
    char morada[100];
    int idade;
    int telefone; //o tipo está errado
} Aluno;

void infoPerson(Aluno *turma, int limite) {
    for (int i = 0; i < limite; i++) {
        printf("Introduza o número \n");
        scanf(" %d", &turma[i].numero);
        printf("Introduza a idade \n");
        scanf(" %d", &turma[i].idade);
        printf("Introduza o telefone \n");
        scanf(" %d", &turma[i].telefone);
        printf("Introduza o nome \n");
        scanf(" %99s", turma[i].nome);
        printf("Introduza a morada \n");
        scanf(" %99s", turma[i].morada);
    }
}

int main() {
    int opc;
    Aluno turma[2];
    do {
        printf("1 - Introduzir alunos\n");
        printf("2 - Teste\n");
        printf("3 - Teste\n");
        scanf("%d", &opc);
        switch (opc) {
            case 1:
                infoPerson(turma, 2);
                break;
            case 2:
                printf("\n");
                break;
            case 3:
                printf("\n");
                break;
        }
    } while (opc < 0 || opc > 3);
    printf("%s - %d\n", turma[0].nome, turma[0].idade);
}

Then I detail the errors. The code is still not good.