I can't even make a guess what could be the problem here. I think it is easier tho show a video:
I think it describes my problem. I don't know what's my mistake! The debugger doesn't really work, I don't use malloc or free.
I have been assigned to create a search function in text file, but I received this error when I run the program and try to search: Error message: Unhandled exception at 0x0f85d442 (msvcr100d.dll) in Ticket.exe: 0xC0000005: Access violation reading location 0xcccccd08.
I don't know what is the exactly problem. So I just copy everything and paste here. Please don't fear of these codes, I have 2 files only, but I will paste 3 files here, the one is prototypes.h, then the main.cpp, the last one is part of my function that can working well alone, but when I put them into main.cpp I will get the error message like I mentioned before.
I'm getting Unhandled exception when try to run option 3.
This my code below.
Code:
#include <iostream>
#include <string>
using namespace std;
struct Vet {
string name;
int numOfAnimals;
string phoneNum;
[code]....
#include <iostream>
#include <fstream>
#include <string>
#include <locale>
#include <vector>
#include <algorithm>
#include <set>
using namespace std;
//*******************************************************************
bool char_compare(const char& d1, const char& d2)
[code]....
I'm trying to run this program, but at one point it crashes and gives me the following error:
Code:
#include <iostream>
#include <cstdlib>
#include <ctime>
#include <string>
#include<conio.h>
using namespace std;
const int maxtries=5;
int letterFill (char, string, string&);
[Code] ....
I just wondering if a base class can call the overridden function from a Derived class?
Here's an example:
//Base Class H
class BaseClass {
public:
BaseClass();
virtual ~BaseClass();
virtual void functionA();
[Code] ....
So basically, when I am creating a new object of Derived class, it will initialize BaseClass and the BaseClass will call functionA but I want it to call the function overridden by Derived class.
I know that if I call newObj->functionA it will call the overridden function. Right now I want the base class to call the overridden function "this->functionA(); in BaseClass" during its initialization. Is it possible to do that?
I have a this program of storing students in a 2-3-4 tree. I have a template class called hw6_234tree and another class called Student. Now my private member variable (m_root) keeps being reinitialized every time I process a new line. For example the first student I run through my m_root->A = Student A...(m_root is a private variable of type Node* inside of the 2-3-4tree class).The next pass through now my m_root->A == Student B. So essentially my first run through m_root->A = Student A. Then the next run m_root->A = Student B. My question is how can I keep this variable the same and stop it from reinitializing m_root->A to student B.
Here are a few snips of the code:
Function in main:
void ProcessLine(string line, hw6_234tree<Student>& tree)
Function call:
tree.Add(Student(id, name));
Private Variable:
Node* m_root;
A function for a struct named (Node) in the private section of class hw6_234tree that assigns variables in the struct to values:
Node(T* valueForA)
{
A = valueForA;
B = C = NULL;
L = M1 = M2 = R = NULL;
}
The start of my Add function:
bool Add(T& toCopyAndAdd)
{
if (m_root == NULL)
{
m_root = new Node(&toCopyAndAdd);
return true;
}
return false;
}
I searched the web for error: C3867... and the discussions where murky or obscure.
My code excerpt is:
#pragma once
#include <windows.h>
#include <stdlib.h>
#include <process.h>
void PutUpfrmIO(void *);
namespace WordParsor {
[Code] .....
I get the generic message:
error C3867: 'WordParsor::Form1::PutUpfrmIO': function call missing argument list; use '&WordParsor::Form1::PutUpfrmIO' to create a pointer to memberc:userskingc++wordparsorwordparsorForm1.h... and the suggestion fix generate another error.
One person suggested the gcroot<> object wrapper... but I do not know how to modify/declair the function or its argument type.
The function is supposed to return value from the file in my main, but I am getting empty value. I am trying to get better with pointer. Right now just teaching myself.
right now the only way for this code to show value is when in put the putchar(*ps) inside my readfile function. I would like to readfile to return value and print in the main function.
Code:
#include <stdio.h>
char *readfile(char filename[]);
int main(int argc, char *argv[] ) {
[Code].....
Here is a sample of my question
class Base{
public:
int getNum();
private:
int numToGet;
}
class Derived: public Base {
public:
friend ostream& operator<<(ostream& output, const Derived &B);
[Code]...
Is this possible?
int myfunc( int a, int b, char * c )
char a = "(int)myfunc()";
char b = "(int,int,char*)"
call(a, b, ...) // Function name and return type, params
I want to do function what registers forward what will get callback if the time is right. Basically then i dont need to edit and add extra functions into source files. I just have to include header and use register forward function. If there is anything close to this it would be perfect!
I have this sample code, that calls a function in a DLL. The function Callback is provided to the DLL as an argument, in order for the DLL to notify my program of relevant changes.
sample:
#include <iostream>
#include <conio.h>
#include <windows.h>
#include <winbase.h>
#include "TcAdsDef.h"
#include "TcAdsApi.h"
using namespace std;
void _stdcall Callback(AmsAddr*, AdsNotificationHeader*, unsigned long);
[Code] ....
I would like to change this code, so that there is a Main class that opens the connection and there are several separate classes (as below) that register themselves for a specific variable and get notifications if that value is changed. The reason for this is that I want to get several notifications for several independent events and I don't want them to mix. I figured this should look something like this:
class.h
#ifndef INACLASS_H
#define INACLASS_H
#include "Main.h"
class InAClass {
public:
InAClass(Main* mainClass, std::string iolocation);
[Code] ....
Unfortunately this gives me an error:
error: cannot convert 'InAClass::Callback' from type 'void (InAClass::)(AmsAddr*, AdsNotificationHeader*, long unsigned int)' to type 'PAdsNotificationFuncEx {aka void (__attribute__((__stdcall__)) *)(AmsAddr*, AdsNotificationHeader*, long unsigned int)}'
At first I thought this was because I don't have the namespace "using namespace std;" on top, but then I should be able to find something that specifically needs to come from the std namespace and is not marked as such. I don't want to rule the option out, but so far I could not find anything like that.
An alternative explanation might be that the Callback function needs to be global, but if I make it global, how can I distinguish between several Callback functions?
Every time I try to use the function SaveNewCD, it doesn't write to file correctly. It writes the ~, three characters, then goes into an infinite loop.
#include<iostream>
#include<fstream>
using namespace std;
int SaveNewCD();
int OpenCD();
int main() {
char ArtistName[25];
[Code] .....
I am trying to call a function through a variable
The error
|error: no match for 'operator=' (operand types are 'std::string {aka std::basic_string<char>}' and 'void')|
|warning: statement has no effect [-Wunused-value]|
||=== Build failed: 1 error(s), 1 warning(s) (0 minute(s), 0 second(s)) ===|
#include <iostream>
#include <fstream>
[Code].....
I am trying to use ofstream to write in a txt file in a function called recurrently. for a simplified example:
void func_write(double x) {
ofstream myfile;
myfile << "the result = " << x << endl;
} int main() {
ofstream myfile;
[Code] .....
To this stage, it does not work, because the myfile in func_write cannot write in the txt file opened in main function. I don't want to open, append and close the txt file each time the function is called, that will take more time to execute all (imagine with 500 calls).
I want to call the array from one function to another all function not a main function
View 2 Replies View RelatedI have a code like this below in /root_project/main.cpp:
Code:
#include "theoraplayer/TheoraVideoClip.h"
unsigned int tex_id;
TheoraVideoManager* mgr;
TheoraVideoClip* clip;
std::string window_name="glut_player";
bool started=1;
[Code] ....
and the TheoraVideoClip.h file is in /root_project/include/theoraplayer/.
Inside of TheoraVideoClip.h there is this:
Code: TheoraVideoFrame* getNextFrame();
And when I try to compile using g++ -o app main.cpp -lGL -lglut -lGLU -ltheora -ltheoradec -ltheoraenc I'm gettin this error:
main.cpp.text+0xac2): undefined reference to `TheoraVideoClip::getNextFrame()'
Ubuntu 11.10
How would I call a string that sits within a switch loop in the main function, into a separate function?
Like this:
void statistics() {
cout << "Here are the statistics for your entry: " << endl;
cout << "
The size of your entry is " << s.length() << " characters." << endl;
}
I am calling string s from this:
switch (toupper(myChoice)) {
case 'A': cin.ignore();
cout <<"
Please enter your text: ";
getline(cin, s);
[Code] ....
I have two functions bool check_key(string cKey, string eKey) and bool check_digit(char digit1, char digit2), and I have declared both of them globally (is this the right terminology?) right after the "using namespace std;" and right before the "int main(){".
In the first one, I called the second one . But it is giving me the error: "no match for call to `(std::string) (int&)' ".
Code:
bool check_key(string cKey, string eKey) {
if(cKey!="" && eKey=="") return false;
if(cKey=="" && eKey=="") return true;
if(cKey=="" && eKey!="") return true;
if(cKey.length()!= eKey.length()) return false;
bool flag=true;
[Code] ....
I'm new to C/C++. I'm trying to make a program that's going to use the CBLAS libraries that I downloaded on BLAS. After fighting tooth and nail with VC 2005 (I downgraded on purpose because at one point I was desperate.) with regards to solving compilation errors and such and eventually it all compiled just fine.
The problem now is, I get the above mentioned error. It says: "Unhandled exception at 0x0040271c in Try.exe: 0xC0000005: Access violation reading location 0x4e18feb8."
Now there are a few .cpp files (I'm compiling as C code.) which contain the functions and there is one other one which contains my main method. Using the debugger, it goes through 3 files all in all.
The main file: Code: /* cblas_example2.c */
#include <stdio.h>
#include <stdlib.h>
#include "cblas.h"
#include "cblas_f77.h"
[Code] .....
I get the above-mentioned exception in the last line, or:
Code: cblas_dgemm( UNDEFINED, transa, transb, *m, *n, *k, *alpha, a, *lda, b, *ldb, *beta, c, *ldc );
The debugger tells me what the address in the exception is the address if *ldc.
Expected output: 20
But what I got is: 22
Why. While calling sub function it should take the global variable am I right
insert Code:
#include <iostream>
using namespace std;
int a=0;
void sub()
[Code] ....
Code:
const MenuData breakfast[NUMOFBREAKFASTITEMS] = {
{"Egg Breakfast", "Two eggs with a side of bacon and two slices of toast.", "", "2 Eggs, 2 Toats, 2 Bacons", "", 250.00},
{"Pancake Breakfast", "Three Buttermilk pancakes served with butter and syrup.", "", "Three Pancakes, Butter, Syrup", "", 200.00},
[Code]....
What I'm trying to do is call the printReceipt function in the main, but I'm doing it wrong. Here is my attempt.
Code:
printReceipt (const MenuData menu[], qty, info)
I've tried it many other ways but I keep getting an error. I tried researching it on the internet, but I don't get much info.
I have i want to call a function with two results for example x = 1 and y = 2.How do i return this function in c and how do i call such a function in the main program.
View 9 Replies View RelatedSuppose I have the following function containing while loop:
#include <iostream>
using namespace std;
int Loop () {
[Code]....
here in above code I want to return value of 'a' by calling function 'Loop'. Is there any way to do this??
for above code output should be:
value of a: 10
value of a: 11
value of a: 12
value of a: 13
value of a: 14
value of a: 15
value of a: 16
value of a: 17
value of a: 18
value of a: 19
I've been trying to get my program to call void functions with an if statement, but when i run my program and try to call one of the functions "worst case, best case, or random case" it doesn't get called. It just prompts the original menu.
#include<iostream>
#include<fstream>
using namespace std;
void bubbleSort();
void selectionSort();
[Code] .....
I'm trying to call a function on a derived class that's in a vector of it's base class. I've made the code really simple for illustration purposes:
class Sprite {
virtual void update();
}
class Enemy : public Sprite {
virtual void update();
[Code] ....
I want to be able to just call update() on the items in the vector and the derived class update() functions be called. Currently, it always calls the Sprite update, which makes sense, but it's not what I want. Is there a way to call the derived update function without knowing the type of the derived class?
