Beginner's problem

[o00o]

Hi

Not sure if I should ask my question here, so admin please move it to the appropriate section. Sorry for the trouble.

I'm coding using VS6. I wanted to create a method that will return a user-defined struct.

This is found in the header file.

class A
{
protected :

typedef struct {
int a;
int b;
} B;

B NAHD_Match::ABC(const char *name1);
}

It compiles fine if I don't use the method ABC in the source code.

However, when I try to insert code for

A::ABC(const char *name1)

in the source code to the following


B A::ABC(){
B newB;
newB.a=99;
newB.b=45;
return newB;
}

the compiler pops the following error message.
D:\Shared Documents\Work Docs\A.cpp(72) : error C2143: syntax error : missing ';' before 'tag::id'
D:\Shared Documents\Work Docs\A.cpp(72) : error C2501: 'B' : missing storage-class or type specifiers
D:\Shared Documents\Work Docs\A.cpp(72) : fatal error C1004: unexpected end of file found
palmprintDlg.cpp


And when I change the return type to int, the code will compile successfully. The actual full code isn't written by me and I was task to check some of the implementations only so I would try not to include the entire code here unless really needed.

The include message if needed, contains
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <math.h>
#include "A.h"

Do let me know where did I do wrong?

Thanks in advance.

[o00o]

I realised I didn't manage to replace all the words correctly and there's no edit button for me to correct the mistake...
so please note that all "NAHD_Match "was replaced by "A"

[CoolPG]

You must terminate the closing braces of a class with ';' (semicolon).

[o00o]

hi, thanks for the quick reply =P

In the actual code, there is actually a ";". So even if i add in the ";", the same problem still persist. I read in some other post about c++ not being able to recognize the struct or something similar. Which explains why when I replace the method with a data type such as int, the method will work?


Thanks in advance again

[GCDEF]

hi, thanks for the quick reply =P

In the actual code, there is actually a ";". So even if i add in the ";", the same problem still persist. I read in some other post about c++ not being able to recognize the struct or something similar. Which explains why when I replace the method with a data type such as int, the method will work?


Thanks in advance again

How is anybody supposed to help if you don't post your actual code?

[VladimirF]

Since struct B is defined inside your class A, do this:

A::B A::ABC(const char *name1)

[o00o]

@GCDEF
Well, one part of the reason is because the code belongs to someone else and another is the code is really very very long. I can send you the 2 files (source + header) individually through a email though.

@VladimirF
I got this error instead when I try this. It seems the compiler thinks that A::B is a method instead?
D:\Shared Documents\Work Docs\FYP\FYP_cyl\NAHD_Match.cpp(72) : error C2511: 'ABC' : overloaded member function 'A::B (void)' not found in 'A'

Thanks in advance =D

[CoolPG]

Well, one part of the reason is because the code belongs to someone else and another is the code is really very very long. I can send you the 2 files (source + header) individually through a email though.

He was asking you to post the 'exact' block of codes in your program., not your entire source code.

[Amleto]

class A
{
protected :

typedef struct {
int a;
int b;
} B;

B NAHD_Match::ABC(const char *name1);
}

It compiles fine if I don't use the method ABC in the source code.

However, when I try to insert code for

A::ABC(const char *name1)

in the source code to the following


B A::ABC(){
B newB;
newB.a=99;
newB.b=45;
return newB;
}

see red bits

[VladimirF]

see red bits

I think it has been established that the code in original post is somewhat “approximate”.
Well, even the function name doesn’t match!

[VladimirF]

@VladimirF
I got this error instead when I try this. It seems the compiler thinks that A::B is a method instead?
D:\Shared Documents\Work Docs\FYP\FYP_cyl\NAHD_Match.cpp(72) : error C2511: 'ABC' : overloaded member function 'A::B (void)' not found in 'A'

Wait! (void)? Your definition of that function has one parameter.
Anyway, this is different error (from the original one, that is fixed by specifying that return type B is defined in class A).

[Amleto]

I think it has been established that the code in original post is somewhat “approximate”.
Well, even the function name doesn’t match!

yeah, but it was still relevent for his reported error in post #7

[o00o]

Well, i think I've solved the problem...

It's because I (or rather the original writer) used typedef in the header file...

I hope that is the reason behind the problem really... >.<

Thanks everyone for the input