Structure return type is an incomplete type.

[gk245]

I have something like this:

#include <stdio.h>
#include <ctype.h>
#include <strings.h>

struct sentence get_sentence (char string[])
{
struct sentence my_sentence
{
int count_1;
int count_2;
int count_3;
};

// Add for-loop to count numbers, uppercase letters (isupper),
//lowercase(islower), etc.

return(mysentence)
}

However, even before i add the for-loop, i cannot compile it. An error
comes up saying that the "return type is an incomplete type".
Basically, the problem asked me to count the number of
uppercase/lowercase letters and digits in a string. Then return that
as a structure.

Thanks.

 

[gk245]

gk245 submitted this idea :

I have something like this:

#include <stdio.h>
#include <ctype.h>
#include <strings.h>

struct sentence get_sentence (char string[])
{
struct sentence my_sentence
{
int count_1;
int count_2;
int count_3;
};

// Add for-loop to count numbers, uppercase letters (isupper),
//lowercase(islower), etc.

return(mysentence)
}

However, even before i add the for-loop, i cannot compile it. An error comes
up saying that the "return type is an incomplete type". Basically, the
problem asked me to count the number of uppercase/lowercase letters and
digits in a string. Then return that as a structure.

Thanks.

Doh, nevermind, i was supposed to declare the structure and its members
before the function starts, not inside of it.

 

[Christopher Benson-Manica]

#include <stdio.h>
#include <ctype.h>
#include <strings.h>

struct sentence get_sentence (char string[])
{
struct sentence my_sentence
{
int count_1;
int count_2;
int count_3;
};

How do you expect this to work? The structure definition is contained
within the function block; you're declaring get_sentence() to return a
structure whose definition is not in scope. Your friendly C text can
explain how to use incomplete types for fun and profit; you can also
simply move your structure definition outside the function (and to an
appropriate header file).