warning: assignment from incompatible pointer type

Kirkina A. (alya) OP (Company: no) 2017-07-06 21:22 #5067690

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I'm sick of this warning! Here's the code

struct passwd *pwd; 
code In function printLine:
gid_t gid = statbuf.st_gid;
        pwd = getgrgid(gid);
        if(pwd != NULL)
            printf("%s]", pwd->pw_name);
        else
            printf("%d]", statbuf.st_gid);

All prints correctly when executed. What needs to be corrected so that 
the selection disappears?
====
ls.c: In function ‘printLine’:
ls.c:225:13: warning: assignment from incompatible pointer type
         pwd = getgrgid(gid);
             ^

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Sebi Guest 2017-07-06 21:50 #5067722

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Whats the return type of getgrgid?

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(prx) A. K. (prx) 2017-07-06 21:55 #5067728

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struct group *

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Yalu X. (yalu) Moderator 2017-07-06 22:44 #5067781

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pwd seems to be of type

  struct passwd *

but getgrgid() returns

  struct group *

The first three elements of the two structs are similar, thus the code
still works.

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Kirkina A. (alya) OP (Company: no) 2017-07-07 14:01 #5068547

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Yalu X. wrote:
> pwd seems to be of type
>
>   struct passwd *
>
> but getgrgid() returns
>
>   struct group *
>
> The first three elements of the two structs are similar, thus the code
> still works.

Thanks