Visual C++ :: Incomplete Type Is Not Allowed?

May 21, 2013

Code:
#include "..ObjectsObjects.h"
class Idle;
class Objects;
class Goods;

[Code].....

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C++ :: Incomplete Type Is Not Allowed

May 8, 2013

I am trying to get a program to take two files and place them into a third file. I have searched all over this website looking for a solution and i can seem to find one.

My issue is that i keep getting an error 'incomplete type is not allowed' as well as 'no operator matches these ">>" these operands.'

#include<iostream>
#include<string>
#include <sstream>
using namespace std;
int main() {
string filename1;

[Code] .....

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C++ :: Incomplete Type Is Not Allowed

Jul 19, 2012

So, I ran into the above error. I can't post the actual code, but here is the setup... I have four classes: A, B, C, and D.

A.hpp

Code:
class A {
public:
virtual void foo( D& bar );

[Code] .....

In A.cpp I implement foo and use bar in a similar manner as shown in class C. The difference here is that in A.cpp I also include the header for the D class. I am a bit confused why I can pass bar to B::foo() and that works fine, but if I try to access bar in C::foo, I have issues. Currently I am just including D.hpp in C.cpp.

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C :: Enum - Incomplete Type Is Not Allowed

Sep 30, 2014

I have an enum like:

Code:
typedef enum mac_type_e{
STATIC_MAC,
BLACKLIST_MAC
} mac_type_t; and I want to use this type in a structure that's declared like:

Code:
typedef struct lan_mac_s {
UINT16 lanmacid;
enum mac_type_t lan_mac_type_pp;// user mac type per port, 20 mac_type_t array, 0 = static, 1 = blacklisted now,

The compiler tells me:

Code:
incomplete type is not allowed
enum mac_type_t lan_mac_type_pp;// user mac type per port, 20 mac_type_t array, 0 = static, 1 = blacklisted

But if I remove the preceeding "enum" keyword, it compiles fine.

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C++ :: Getting Error - Incomplete Type Is Not Allowed

May 26, 2014

When declare and assign an instance of a user-defined struct in a function. And the struct (theStruct) is not declared in the same header file as the function (theFunction). Like this:

files:
"A.h": declares the struct in a class (theClass)
"A.cpp": implements the struct
"B.h": declares the function
"B.cpp": implements the function, error here

I think making the instance (inst) a reference might solve this. But the instance is assigned to a return value from a function (returnFunc). Like:

void theFunction() {
...
theClass::theStruct inst = returnFunc(...);
//returnFunc() returns an instance of theStruct
//the error is at 'inst'
...
}

What do you think?

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Visual C++ :: Pointer To Incomplete Class Is Not Allowed

Jun 16, 2013

Here is the pseudocode,

Code:
class myDX9Widget {
std::vector<Object*> m_vRenderObjects;
};
class Object {
};
class Lorry : public Object {
Activity *activity;

[Code] .....

Don't worry about the exact syntax here, I'd like to concentrate, on a conceptual level, why the line

lorry->Owner->m_vRenderObjects.push_back(pallet);

is not allowed

lorry is regarded as "Pointer to incomplete class"

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C/C++ :: Variable Has Incomplete Type Matrix

Apr 18, 2015

The code below is supposed to be a program that allows the user to enter in 2 matrices and add them together, and gives an error when they're not the same dimensions.

The error I'm getting is on line 11 of MAIN.CPP and is saying "The Variable has incomplete type 'Matrix'".

MAIN.CPP

#include <iostream>
#include <vector>
#include <string>
#include "Matrix Class Input.h"
using namespace std;
int main() {
Matrix A,B,C;
int r,c=0;

[Code] .....

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C/C++ :: Dereferencing Pointer To Incomplete Type

Feb 27, 2014

keep getting "deferencing pointer to incomplete type" on the bold lines:

main:
int main(int argc, char *argv[]) {
printf("Please think of an animal. I will try to find out what it is by asking you some yes/no questions.");
struct treenode *root = mkTreeNode("Is it a reptile?
", NULL, NULL);
struct treenode *selectedNode = root;
root->left = mkTreeNode("Does it have legs?

[code]....

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C++ :: Type Name Not Allowed

Jul 22, 2013

#include<iostream>
#include<cstdio>
#include<list>

[Code]....

In the last line "graph.edge{x,y,w}" it says typename is not allowed? I have used nested class edge and pushing vertices and their weight in elist vector which is of type edge.

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C :: Error - Dereferencing Pointer To Incomplete Type

Feb 21, 2015

I've been writing the math functions for a 3d game and tried compiling it at about 30 functions in. I get this error related to my pointers to my structures. it affects almost everything in all my functions (as youll see by looking at how i do the math in the function below). The compiler gives me the error

"error: dereferencing pointer to incomplete type"

on all my struct Type4D pointers but referencing the values in my struct TypeMatrix4X4 using pointers seems to work fine i think (it doesn't seem to complian explicitly about it. so here is the important code...

one example function

Code:
struct Type4D *MatVecMult4X4RtoL(struct TypeMatrix4X4 *mat, struct Type4D *vec) {
struct Type4D *dest = (struct Type4D *) malloc(sizeof(struct Type4D));

[Code]....

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C++ :: Forward Declaration Incomplete Type Struct?

Feb 13, 2015

I am trying to compile the files below. The PosLin.cpp contains the SurTriAuto and SurTriPosRotAndQ functions below. Before adding SurTriPosRotAndQ, it compiled fine, but when I added SurTriPosRotAndQ, I am getting "invalid use of incomplete type ‘struct PosRotAndQ" error messages

I was thinking I could try moving SurTriAuto and SurTriPosRotAndQ to PosLin.h, but since they return "T*", I'm not sure what to do

I have a "t.h" file

namespace TNS
{
class T
{

[Code]....

when I add "include Pos/PL.h" to geopar.h, I get an error saying v.hpp is missing, where v.hpp is part of a 3rd-party software and it is already in my directory

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C++ :: Error Dereferencing Pointer To Incomplete Type

Jul 10, 2013

I am having trouble with this program I get the error dereferencing pointer to incomplete type in the populate function I am using BloodShed's Dev C++ compiler v4.9.9.2 I copied this program out of a book because I was having a problem with a linked list in a similar program. I think there is a problem with the compiler not supporting these types of pointer's in a function.

#include <stdio.h>
struct tel_typ {
char name[25];
char phone_no[15];
struct tel_typ *nextaddr;

[code].....

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C/C++ :: Error / Dereferencing Pointer To Incomplete Type

Sep 13, 2014

I am getting this error:

drivers/media/video/mxc/capture/gt2005.c:2256:62: error: dereferencing pointer to incomplete type

I am at a loss trying to figure this out. Here it is:

case Sensor_Flash:
{
struct i2c_client *client = to_i2c_client(to_soc_camera_control(icd));
struct sensor *sensor = to_sensor(client);
if (sensor->sensor_io_request && sensor->sensor_io_request->sensor_ioctrl) {
sensor->sensor_io_request->sensor_ioctrl(icd->pdev,Cam_Flash, on);
if(on){

Lines 6 and 7 are giving me the same error. What am I doing wrong?

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C++ :: User Defined Functions - Type Name Is Not Allowed

Dec 5, 2014

So I received an error of "type name is not allowed" and I don't know how to fix this.... Here is the code:

retrieveData(string Name, double wage, double hours, int exemptions, char Status);
dataCalculations(double wage, double hours, int exemptions, char Status, double grossPay, double ficaTax, double incomeTax, double netPay, double taxWithheld);
sendData(string Name, int ID, double hours, double wage, double ficaTax, double incomeTax, double grossPay, double netPay);

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C++ :: Virtual Can Only Exist In Non-static Member Function - Field Has Incomplete Type Void

Dec 5, 2014

I'm writing a class "Property" for a program that manages different types of properties. This is my .h for y base class. I was trying to write a virtual void function to convert different children classes to strings that can be displayed, but Xcode is freaking out.

I had it as:

virtual void toString()= 0;

and it gave me an error message: "Virtual can only exist in non-static member functions" and "field has incomplete type 'void'"

I changed it to:

virtual string toString() = 0;

and the error message didn't change.

Is this an issue with Xcode or did I do something wrong? Even after changing it to string it told me that it "has incomplete type 'void'"....

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C++ :: Getting Incomplete Sequence

Jan 14, 2014

unsigned char x1, x2, x3;
size_t ix = 0;
size_t count;
std::string Input = "EFEF9E9475C8C2D938C204EAE058F2B3";

[code]....

when debug and have a watch on out i get incomplete sequence,

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C++ :: Error - Inherited Member Is Not Allowed

Feb 15, 2013

this is my header file
#ifndef Header_H
#define Header_H
#include <iostream>
#include <string>
using namespace std;

class CurrentAccount{

[Code] ....

The problem i m facing now is the CurrentAccount class display is showing error inherited member is not allowed....

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C++ :: Static Assert Not Allowed In Enums

Feb 13, 2014

I'm going from section 7.1 where it is stated that:

Standard wrote:A declaration occurs in a scope (3.3); the scope rules are summarized in 3.4. A declaration that declares a function or defines a class, namespace, template, or function also has one or more scopes nested within it.

Jumping to section 3.3 we find that there exist block scope, function prototype scope, function scope, namespace scope, class scope, enumeration scope, and template parameter scope.

I find nothing that states that static_assert declarations cannot be used in any of those scopes, yet only block, function, class, and namespace scopes allow for it with clang.

static_assert(true, "");// namespace scope (good))
class X {
static_assert(true, "");// class scope (good))

[Code].....

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C# :: DataGrid Edit Item Not Allowed

Jul 19, 2014

I have made a datagrid in a WPF and added a button to add rows, here is the code for that:

this.itemListDataGrid.Items.Add(new TextBox());

Also, I have already got 3 colums in the datagrid pre-added by me, so when the rows are added I click on one to edit it and it comes up with error edit item not allowed.

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C++ :: Why Not Referencing Other Parameters In Default Values Allowed

Nov 24, 2013

[URL] ....

#include <iostream>
#include <vector>

void f(std::vector<int> const &v, std::vector<int>::const_iterator it = v.end()) {
} int main() {
f({}); }
prog.cpp:4:73: error: local variable ‘v’ may not appear in this context
void f(std::vector<int> const &v, std::vector<int>::const_iterator it = v.end())

Why is this not allowed? (I mean, what is the reasoning for defining the standard this way?)

In C++14/C++17 we will have a unified way to represent end iterators without an instance of the container, but currently I just have to hope my implementation accepts a default-constructed iterator as an end iterator.

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C++ :: Static Array Variable Size Allowed?

Mar 1, 2013

I have a function like this

void foo( int i) {
...
uint8_t buf[ i];
...
}

And I don't understand why the compiler is not complaining... I'm using g++ -c -g -Wall to compile ....

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C++ :: Matrix Class (strings But No String Header Allowed)

Sep 27, 2013

I am IT student and had a C++/C (oral + paper) exam today. One of the tasks was to write a 2D-Matrix (as the question said) class with following restrictions:

- No <string> header is allowed
- Only Dtor needs to be implemented
- No templates
- Following should be possible:

Code:
std::cout << mat1 + mat2 + "some randome string";
mat1 += mat2; So i did the following:
In Matrix.h i wrote: Code: Class Matrix{
int rows, cols;
char *arr[][];

[Code] .....

Now..this destructor made me loose some points since the Prof. said that it is not correct. The corrected version was:

Code:
Matrix::~Matrix(){
if(arr){
for(int i = 0; i < rows; i++){
for(int j = 0; j < cols; j++){
delete [] arr[i][j];
[Code] ....

Now, i agree on that error i made, but it is only in case we use the "new" keyword to reserve place dynamically for each string(for each char*). So this raised the question in my head about:

Since the following is allowed in C++

Code:
char* str1 = "hello";
char* str2 = "you";
arr[1][3] = str1;//arr[1][3] was initialized to "_" without new keyword
arr[6][0] = str2;//arr[6][0] was initialized to "_" without new keyword why would someone use the new keyword..

I mean like this:

Code:
arr[1][3] = new char*[sizeof("sometext1")+1];
arr[1][3] = "sometext1";
arr[6][0] = new char*[sizeof("sometext2")+1];
arr[6][0] = "sometextw";

What is happening internally in C++ in both the cases(with and without new keyword)?

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C++ :: Where Registry Keys For Allowed Applications Stored In Windows 8

Sep 4, 2014

I'm trying figure out how Windows Firewall functions by experimenting with Bittorrent's add exception to windows firewall option, I deleted the entry from the Firewall options and also located that the regkeys are in HKLM/System/CurrentControlSet/Services/SharedAccess/Parameters/FirewwallPolicy but I can't figure out what registries are made when an application is added as an exception in the Windows Registry.

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C/C++ :: Multiplication And Division Operation Not Allowed With Pointer Arithmetic?

Jul 28, 2013

C++ only allow addition and subtraction operation with pointer .why multiplication and division is not allowed? Then how to perform multiplication and division with pointer

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C :: How To Make Main Function Only Allowed To Declare Variables And Functions

Mar 6, 2015

So I need to make a main function have no if/for/etc. statements so I need to move it to another function and call it in main. The problem is that it's a command line argument function so I'm confused on how it works. Here's an example:

Code:

#include <stdio.h>
int main(int argc, char* argv[])
{
printf("The program name %s", argv[0]);
if (argc == 2) {
printf("Argument supplied is %s", argv[1]); }
else if (argc > 2) {
printf("Too many arguments");}
else {
printf("One argument");}
}

How can i make this into two functions with main only declaring variables and calling other functions?

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C++ :: Operator Overloading In Library - Definition Of Dllimport Function Not Allowed

Aug 1, 2014

Code:
class VAR_EXPORT VAR {
public:
};
VAR_EXPORT QDataStream &operator>>(QDataStream &p_stream, QSharedPointer<Data>& p_data)

[Code] ....

Above compile and build ok. But when i build another library that use the above, i was shown with all errors complaining operator << and >> definition of dllimport function not allowed

error C2491: 'operator >>' : definition of dllimport function not allowed
error C2491: 'operator <<' : definition of dllimport function not allowed

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