Howdy, Stranger!

It looks like you're new here. If you want to get involved, click one of these buttons!

Sign In with Facebook Sign In with Google Sign In with OpenID

Categories

We have migrated to a new platform! Please note that you will need to reset your password to log in (your credentials are still in-tact though). Please contact lee@programmersheaven.com if you have questions.
Welcome to the new platform of Programmer's Heaven! We apologize for the inconvenience caused, if you visited us from a broken link of the previous version. The main reason to move to a new platform is to provide more effective and collaborative experience to you all. Please feel free to experience the new platform and use its exciting features. Contact us for any issue that you need to get clarified. We are more than happy to help you.

Declaring Strings

tubbytubby Posts: 7Member
I can write char a[] = "hello world"; , but i can not write
char a[];
a = "hello world";
why so?

Comments

  • pseudocoderpseudocoder Posts: 673Member ✭✭
    char a[] = "hello world";

    you can that because the compiler knows how much space to allocate for the string "hello world."

    char a[];
    a = "hello world";

    C won't allow aggregate assignment; you've got an array of chars and a string, which aren't exactly the same thing. you've also got an unknown size - the compiler doesn't know much space to allocate to a.

    char a[80];
    strcpy(a, "hello world");

    An interesting feature of C though is you can assign structs.

    [code]
    typedef struct {
    char a[40];
    } test;

    test t1 = { "hello world" }, t2 = t1;

    puts(t1.a);
    puts(t2.a);
    [/code]

    HTH
Sign In or Register to comment.