This is my question : Define a class named HOUSING in C++ with the following descriptions:
Private members REG_NO integer(Ranges 10 - 1000) NAME Array of characters(String) TYPE Character COST Float
Public Members -Function Read_Data( ) to read an object of HOUSING type -Function Display() to display the details of an object -Function Draw Nos( ) to choose and display the details of 2 houses selected randomly from an array of 10 objects of type HOUSING Use random function to generate the registration nos. to match with REGNO from the array.
Now I' trying to do this by this way
Code: #include <iostream.h> #include <conio.h> #include <stdlib.h> class housing { private: int REG_NO; char NAME[10];
[Code] .....
I am trying to pass the entire array of object in DrawNos(). but getting compilation error -
32: 'housing:rawNos(housing * *)' is not a member of 'housing' 48: Structure required on left side of . or .*
What is the problem? How can I pass the array of object in function and use it.
I have just started working through "Jumping into C++". I am at the section on appending strings. The tutorial mentions the getline function but I can not seem to get it to activate. There is no mention of any other inclusions.
Code: #include <iostream> #include <string> using namespace std;
[Code] ....
I note that the getline function color remains black while other functions are green. I presume this means that Codeblocks has not associated it with any of the listed header files. Has the tutorial omitted this detail?
I have finally got around to developing C++ & MFC using Visual Studio 2012, to build a full GUI Windows application (not sure if I have made the right choice). Though admittedly in two months time I do have a dialog window at my beck and call.
Now I have discovered a flaw (suspect) partially caused by the design of this program not all following the same principles, nor written by the same people and long predates me. Let describe the situation.
I have a dialog I have created as a class which has a combo box. The list of items are populate during the OnInitDialog() function just fine, except if the file where the detail is not yet read from that combo box would not have any items other than the default. This is to be expected in the use of the program, so fine.
However, if the dialog (modeless) was already open and active, when the user went up to and selected the menu command (main window) to read that file that CPtrList data structure that held that data would not populate that Combo box on my dialog.
So what I would like when I am done reading the files contents is to detect if my dialog is opened and if so send it a message to Activate (force a call to OnActivate()). I have gone to the event list for the dialog and exposed this event handler from the resource editor just fine.
So nState is an Unsigned Int of the current state of the thread/window (not sure)?
CWnd* pWndOther is the CWnd of my other Window that wants my dialog to activate I think which is the main application since it was on the a menu that this function was called to read the file.
I've been trying for more than one month to access a method found in a library called libcocosnas_static.a. I'm using Cocos2d-X version 2.0.4. The library has been used many times by my company to make games using cocos2d-1.0.1-x-0.12.0 without any problem.
This is what I've done: 1- I added the include paths of the library to both eclipse and Android.mk 2- Included the .h file using #include "NASPlatformUtil.h" 3- Added the libcocosnas_static.a file to the proj.androidobjlocalarmeabi folder 4- Added "LOCAL_WHOLE_STATIC_LIBRARIES += cocosnas_static" to the Android.mk file 5- Called the function using: NASPlatformUtil:: openUrl("http://xxx.xxx.com/");
I can right click on the function, click Open Declaration and get it without any problem, but the compiler keeps on giving me that dreaded error...
i am just making some new programmings and testing it. But every time after compile and run The dos window is closing and again I have to compile And run command so i want The dos windows should prompt me for next input rather than closing.
I need to have an object of class A that doesn't have a default constructor in another class, B:
Code: class A; //This is in a separate header file class B { private:A a;};
The problem is that it won't compile without a default constructor. I'm not allowed to define a default constructor, and the A object in class B has to be private so I can't initialize A a in public.
I also can't change the prototype in the interface to something like
A(int a = 0, int b = 0);
since one of the requirements is that if an object of class A is declared in main, it must not compile due to not having a default constructor. So what can I do to make class B work and compile?
Another question I have is why is this valid:
Code: class A; //#include "A.h" is in the implementation file so it compiles. class B { private:A* a;}; But not this: Code: class A;
class B { private:A a;};
This is for a project that I probably won't be able to turn in on time, but I care more about how to do this right than turning it in for full points.
when i compile the following program i get a compiler warning, but i don't understand why. for me the code seems to be all right and does legitimate this warning. so here is the code
I am working on one application that requires extensive logging so I want to create a log file of each day during execution.
I tried easylogging++ but i am unable to use into multiple files. If i try to use in other file. I get compilation errors of using same functions or methods already defined.
How can i use macro to hide the implementation of logging in one class to other ??
I've been writing a game engine in C++ for a little over a year now, and its been really fun so far. I've been focusing on windows support for now (using Visual Studio and MSVC) but I'd like to leave the possibility of Linux and Mac support open. As a test, I recently compiled a small portion of my reflection system in Clang, to make sure it all still worked (since I consider that the most advanced portion of my codebase, though I'm pretty sure its all standard C++11). Anyway, I got some strange errors regarding undefined identifiers in template functions, and I managed to isolate the issue in the code below:
Clang throws an error about 'TypeInfo' being undefined when 'DoSomething()' is compiled. However, MSVC compiles the code above without so much as a warning.
This goes against my understanding of how template functions/classes were compiled. I always thought that Undefined symbols were not an issue in templates, as long as they were defined by the time the template was instantiated. Whats the issue here? If in fact MSVC has been doing some non-standard stuff, that's pretty unfortunate for me if I want Linux support, as I'll have to do some serious backflips to resolve all the issues with this in my headers and stuff (I can't be the only one in thinking the current state of C++ with headers and forward-decelerations is just awful to work with).
For now I've done a function that creates menus and prints them, and a function that creates the character as an object.
Now I want to be able to show the stats of the player on the main menu, the problem is that I don't know how to make a copy of the map as it's private...
I want to do conditional compilation based on whether it is windows 7 or windows 8. Here is the code below.
#if (_WIN32_WINNT >= 0x0602) //Condition to check whether it windows 7 or 8 .Based on this we can load msxml 3 or 6. #import <msxml6.dll> #else #import <msxml3.dll> #endif
Im building the above code in windows 8 machine.
Issue here is _WIN32_WINNT should have a value 0x0602, it means it is running in windows 8 machine.Instead it has a value 0x0601 (Means it is taking windows version as windows 7 defined in sdkddkver.h).Im not sure after installing windows 8 sdk im not able to see any include or lib files in the path below C:Program Files (x86)Microsoft SDKsWindowsv8.0A . but i can see all include and lib files of sdk version v7.0A available although i did not installed it.
I have a question similar to the one here: [URL] .....
The main difference is I would like to pass a method of derived class as a parameter to some other method in its template base class.
template <typename BaseType> class Base { public: typedef void (Base::*Callback)(int A);
[Code] .....
The above is an example which does not compile. My compiler complains that the two BaseMethod() calls in DerivedMethod() are invalid uses of non-static member function.
Is this not possible to do, or is my syntax simply wrong? All I want is to be able to pass as an an argument to a method in the base class from the derived class some callback as a variable for the base class to invoke later.
I know that if I just use "return" by itself the warning goes away but fails to exit when the error occurs. I also believe this may not be the correct use of stderr. But I need the program to exit when an error has occurred.
The log file gives me: In function ‘memFileAlloc’ assignment makes pointer from integer without a cast..When compiling the drivers for the Matrox card in the DL580. The offending code is:
Today I experienced a very strange compiler issue. I started the compilation and it outputted that a member object of a class was undefined. After about 4 hours of trying the find the bug I commented and then uncommented said line of code that was undefined. Sure enough the compilation worked just from commenting and uncommenting.
I am using Microsoft visual studio 2012 express. Due to the size of the project, I should know the cause because it may cause more problems further down the line. I feel that it might have something to do with the compiler not having a proper order of compilation for the header files and that I might need something to solidify the way that the header files are processed. The below code is a fragment of a header file.
I am new to C++ and am stuck on a program. I've got to create a password check program that makes sure the password rules are followed. Below is the code and the rules i have typed in the comments at the beginning of the program. I have to use loops and cant use arrays for this.
#include <iostream> #include <string> #include <cctype> using namespace std; int main() { //Prompt user to entered a password to be tested cout << "Password must be at least 8 characters long." << endl;
