How to access struct pointer in struct?

Question

I not entirely sure how to phrase this, but can't figure out how to access a struct pointer within another struct. How would I print the values in struct first_name *hello, given the structs below. I can't figure out the syntax.

struct first_name
{
    char *word
    int number
};

struct last_name{

    struct first_name *hello

    int num2

};

Pablo · Accepted Answer · 2018-02-05 02:21:34Z

1

You are missing the semicolons in the structures:

Correct would be

struct first_name
{
    char *word;
    int number;
};

struct last_name{
    struct first_name *hello;
    int num2;
};

You can access the members like any other members of the structure.

struct first_name fn = { .word = "Hello", .number = 23 };

printf("word: %s, number = %d\n", fn.word, fn.number);


struct last_name ln = { .hello = &fn, .num2 = 11 };

printf("name: %s, number: %d, num2: %d\n", ln.hello->word, ln.hello->number, ln.num2);

The output would be:

word: Hello, number = 23
name: Hello , number: 23, num2: 11

answered Feb 5, 2018 at 2:21

Pablo

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