I want to make a basic RPG text based games with multiple classes. but I wan to know how In one class I make a variable and in another and can call the variable.
for exmaple
class2:
int hi = 1;
class1:
class2 a;
hi = 2;
cout << hi;
2
I'm pretty new to C++ and I'm on Binary Trees in "Jumping into C++"! I've just created a DLL project on Code::Blocks, and I cannot get it to build and run: "You must select a host application to "run" a library..." is the message that I'm getting when I run the main code file. It's had no changes to it (except for a few extra, unnecessary line feeds), and it's the file which Code::Blocks generates on a DLL project.
View 13 Replies View RelatedI was trying to make boost's serialization use less bytes, and I stumbled upon this, which removes the big debugging symbols:
strip --strip-debug
or
strip -w -K '!*serialization*'
This seems like a working command on msys, but how to implement this into code blocks.
This has happened before, when I try to run a code it will say "blah.exe has stopped working" and I would have to change the code in some way to make it work.
View 1 Replies View RelatedI'm using Code Blocks but for some reason it doesn't process alt symbols. You know... alt symbols are like this: ☺♫↓☻♪♥↕. Code Blocks says that they're "invalid characters". Is there any attatchments or mods so Code Blocks can process them or will changing the settings?
View 1 Replies View RelatedI'm unable to use the function random(num); in Code::Blocks. It shows the error : error: 'random' was not declared in this scope while the same code works fine in Borland's Turbo C++. How do I rectify this?
View 6 Replies View RelatedI find myself in a position where I am repeating the same pattern of, write shared lib, compile, link shared lib, write app lib "sandbox" dependent on shared lib, write shared lib, compile, link, write...
At each level of dependency I have to carry over previously shared libs, search directories, etc. How to automate this process, so I spend less time linking after each layer?
how to get opengl working in code blocks? I have tried putting in the libraries and such in the correct folder. But I get an error saying that glut32.dll could not be found. I am running a 10.5 code blocks
View 1 Replies View RelatedI've been using code::blocks to work on text files through fstream. But i cannot make it append using my code.
Here's my code:
#include <iostream>
#include <fstream>
using namespace std;
int main() {
fstream dataFile;
dataFile.open("demofile.txt", ios::out);
[Code] ....
In my c project in code blocks , I have added another source file (KillerMoves.c) and a header file under the same name (KillerMoves.h). I added the "include guard" to prevent double inclusion. But from some reason, the program suddenly crashes with no warning or specific error. Without the new files,the program runs without any problems. This is the source .c file:
Code:
#include "KillerMoves.h"
void initKillersTable(){
for(int i = 0; i < 15; i++){
killersTable[i] = -1;
[code]....
I'm using Code:Blocks 12.11 on windows 7, with the built-in MinGW compiler. When I try and compile a program that has an error in it (misnamed variable, missing include, extra semi-colon somewhere, anything) instead of saying something about what went wrong it just has this:
Process terminated with status 1 (0 minutes, 0 seconds)
0 errors, 0 warnings (0 minutes, 0 seconds)
Which is not particularly useful for debugging.
I want to show my output in one line. But my output breaks to next line even before endl is encountered.code blocks horizontal scroll bar in console? is it c++ formatting issue or console issue?
View 3 Replies View RelatedI'm trying to compile my project, but is not working, the weird thing is if i put all the code in 1 file it compile, but not in a project, source code:
Code:
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <ctype.h>
#include <time.h>
#include <windows.h>
[Code] ....
CodeBlocks Project file: Download BattleShip-ProyectoARREGLADO.rar from Sendspace
I downloaded glew 1.9.0 files and dragged the lib, include, and bin of the glew into the mingw folder within Code Blocks. I don't know if this is the right thing to do I don't understand how this stuff works. Anyway, I tried to compile my openGL 3.0 program that uses glew and I got this error: The procedure entry point _glewBindArray could not be located in the dynamic link library glew32.dll, How do I install glew properly?
View 1 Replies View RelatedThis program works on an online compiler but force closes on codeblocks after entering the elements.
#include<iostream>
using namespace std;
int two_print(int x, int one[999]) {
int two[999][999];
for(int k=0, r=x; k<=x; k++, r--)
[code]....
I have created a game.It is working fine in codeblocks, but when I am trying to run it outside codeblocks, it opens and closes immediately. I have pasted all the necessary files and dlls in root folder and debug folder. Here is the code:-
#include <iostream>
#include <SDL/SDL_mixer.h>
#include <SDL/SDL.h>
#include <SDL/SDL_ttf.h>
#include <sstream>
const int WINDOWS_Height = 480;
const int WINDOWS_Width = 640;
[Code] .....
It is said that variables in a function cannot be changed by another function. Only by using pointers can variable values be changed. I am writing some functions to try to prove this theory, but I can't get it right.
Code:
#include <stdio.h>
#include <stdlib.h>
int main(void){
int x = 10;
printf("default x value is %d ",x);
[Code] ......
Code:
#include <stdio.h>
void try1(int x){
printf("x in try1 is %d
", x);
x++;
printf("x in try1 after ++ is %d
[Code]...
i had created a client server program in MFC using TCP but by doing this the server can only work on one computer because you have to tell the client the ip address to connect to i.e
Code:
ServerAddr.sin_addr.s_addr = inet_addr("10.13.31.112");
so i want to change my code so that i can use broadcasting but i found out that it only works using UDP. I tried changing the code but the error message "error with sendto: 10047" displays when i run the program.
that error means
Address family not supported by protocol family. An address incompatible with the requested protocol was used. All sockets are created with an associated address family (that is, AF_INET for Internet Protocols) and a generic protocol type (that is, SOCK_STREAM). This error is returned if an incorrect protocol is explicitly requested in the socket call, or if an address of the wrong family is used for a socket, for example, in sendto.
here is the code from server:
Code:
WSADATA wsaData;
WSAStartup(MAKEWORD(2,2), &wsaData);
int port = 7171;
if (param)
port = reinterpret_cast<short>(param);
[code]....
im creating an address book. One address book contains a ListBox, New User button, Edit User and Remove User button. The first form is suppose to allow you to view the users you've created on the ListBox and you can decide whether you want to remove it, create a new one or simply edit the user. Now The second form simply contains labels and textbox along with a save button. I'm having a bit of issue figuring out the ListBox. I want to be able to create a user and have the user be posted on the ListBox. I read that i must instantiate listbox then simply add it. Now on my form2 i have a for loop that loops through an Array of String were all the users will be created on. How can i call that array of string on to the form1?
Form 1:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
[code].....
EDIT:I just figured out that to call a variable from one form to another you simply instantiate the form then simply call it. PS. must be set to public:
ListBox1 createUser = new ListBox1();
createUser.userString[0];
why doesnt it show the windows when i run without debugging?
If I have a static variable in a class e.g. a pointer to another class like this: (B is another class)
class A {
public:
static B* cB;
};
Then I set that variable and create multiple instances of class A like this:
A::cB = new B;
As = new A[Number];
Then will the value of cB be the same across all instances?
I cannot pass the class pointer in the constructor as I need to create an array of instances. I tried this method but I get linker error.... unresolved external.
I am wondering how to share a variable in 3 classes. For example:
variable class:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
[Code] ...
class that edits the variable:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
[code]......
The actual program:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleApplication1
[code]......
What should happen when this runs is this:
Variable changed in program: 0
Same variable changed in a different class: 1
Instead, this happens:
Variable changed in program: 0
Same variable changed in a different class: 0
Is it possible to overload a variable in a derived class? Example:
struct Circle
{
int radius() const { return r; }
private:
int r;
}
struct Smiley : Circle
{
// inherits the function int radius() const, but doesn't return Smiley::r
private:
int r;
}
I am writing a bit-check function just to make it easier on myself to check status flags in my classes. I use char variables and each bit represents something on or off. Since I have numerous classes that will use this functionality, it makes sense to write and compile the code only one time rather than for each class. I was thinking of writing the function and including it as a "friend" function to each class that needs it. Is that an appropriate way to do it?
View 2 Replies View Related When I set a local variable to a value it causes a segmentation fault. This happens in the GameObject class in the setGame method.
While your at it tell me what you think of the design. Am I on the right track? if not state why.
Here is the source: [URL]
ISSUE: How to avoid redundant code in c++ ?
Problem:Say I have a Base class called Car and it has 3 derived classes say Ford, Honda and Audi.
now the issue is all 3 derived classes have exactly same code but minor difference in calling member functions of their r respective engines( these engines have separate class) . example ford class calls code which is exactly same as other 2 classes but do call something like ford_engine-> start() ford_engine->clean() bla bla bla .
//ly honda calls honda_engine->start() honda_engine->clean();
//ly Audi calls audi_engine->start() audi->clean();
now here the issue is it has redundant code in all 3 places with minute difference. Hoow I can have code at one place most probably in Base class and all derive classes uses same code.
I have two classes, a Package class and a Person class. The Package class has two Person objects has member variables, a Sender and a Receiver. While overloading the << operator for the Package class so that it will make an output label from everything in the Package class. Here is my code...
class Package{
public:
Person Sender;
Person Reciever;
int weight;
double cost;
friend ostream &operator<<(ostream &out, Package &pack);
[Code] .....
So my problem is on that last output line, I am unable to call Sender.getName()... etc. Is there a proper syntax so that I can access the members of the Person class while overloading the << operator for the Package class?