C++ :: Syntax For Declaring Two-way Friendship In 2 Classes?
Feb 24, 2013What is the general syntax for declaring two-way friendship in 2 classes?
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C++ :: Linked List - Friendship Of Functions Related To Classes
Jul 5, 2013I'm developing a stack using a linked list. I have to develop two friend functions to do something with the list. But I've tried to understand the friendship, without any consistent result.
Extract of code:
Code:
class Element {
public:
int Data;
Element *nextElement;
Element(int Element) {Data = Element; nextElement = NULL;}
~Element() { }
[Code] ....
I have no errors, but I cannot access the private properties of the class.
The thing I would like to do is: sum the elements of the stack with a friend function.
C++ :: Declaring And Accessing Arrays In Classes
Mar 31, 2013We are learning how to use composition. In this project there is the Main (), resistor .cpp and .h, capacitor .cpp and .h, and filter .cpp and .h. I have 4 arrays built in the resistor.cpp that I want to print through the main(). I put the arrays in the constructor and have watched them initialize with the proper values, but as soon as the program leaves the constructor the values are wiped away and the elements are left with the value " -858993460 " in all of the them.
Here is the code:
Filter Main()
#include "Capacitor.h"
#include <conio.h>
#include "Filter.h"
#include <iostream>
#include "Resistor.h"
#include <windows.h>
#include <iomanip>
[Code] .....
C++ :: Initializing And Declaring Arrays In Classes?
Jan 23, 2012I'm picking up C++ by translating java code to C++. I have the completed code in java and it works perfectly. I'm not going to paste the whole code, this is a part of what I have:
Code:
class Graph
{
final int MAX_VERTS = 20;
[Code]....
I know it looks almost exactly the same as its java counterpart. I have several sources opened, but it's all bits and pieces of what I need.
C++ :: Friendship From Derived Class Method To Base Class Members
Jul 15, 2014I would like to know if there's a way to make a method from a derived class a friend of its base class. Something like:
class Derived;
class Base {
int i, j;
friend void Derived::f();
protected:
Base();
[Code] ......
C++ :: Array Of Classes With Classes Inside
Oct 5, 2013I have an array of (Student)classes created in Manager.h, which contains a new instance of class Name (name),(in Student.h)How would I go about accessing the SetFirstName method in Name.cpp if I was in a class Manager.cpp? I have tried using Students[i].name.SetFirstName("name");
// In Manager.h
#include"Student.h"
class Manager
{
[Code]....
C :: Syntax Error In Expression Near If
Feb 3, 2013I am using code::blocks for c programming and when i take debugger in below code it show ..
a syntax error in expression near "if"..
I am just checking debugger ...
Code:
#include <stdio.h>
#include <string.h>
int main()
{
char s1[100];
[Code] ....
C :: Language Syntax Checking
Jun 15, 2013Q. In context of C language syntax checking, which of the following can be modeled using Finite Automata?
(A) Detecting proper termination of an instruction.
(B) Detecting balance of parentheses.
(C) Detecting initialization of a variable.
(D) None of the above.
C/C++ :: Do While Loop Syntax Error
Feb 28, 2014I am just starting out with loops and I have run into an syntax error and for the life of me I cant find out the issue. Before it has been an issue of me forgetting to close my brackets but I am pretty sure I did that this time. I am trying to have the program keep looping the main menu until the user inputs a correct number.
float total_Bal = 0.00;
char user_Choice;
do
{
[Code]....
C/C++ :: Syntax Of Function Passing?
Feb 5, 2014I'm familiar with function pointers as the method to pass a function as an argument to another function. However, I recently encountered some other syntax. I have seen in multiple times and in books,so I know it is probably not a syntax error. But I am not totally sure.
#include <iostream>
void Function1() { std::cout << "Function1"; }
void Function2(void aFunction()) { aFunction(); }
// make a param that describes the function the will be given
// as a param (return type, identifier,
[Code].....
C++ :: Declaration Syntax Error
Apr 20, 2012I keep getting a "Declaration syntax error" at line ""int main()". Is there something wrong with my int main()? And how do I go about it? Here is the program:
#include<stdlib.h>
#include<iostream.h>
#include<stdio.h>
#include<math.h>
#include<conio.h>
float rung4(float x, float y, float h)
int main() {
float eps=0.00001;
[Code] .....
C++ :: Syntax Error If Statement
Feb 19, 2012I got syntax error in if statement ,, i checked the line i put { after the condition don't know where the mistake are
1>c:usershani est11 est11code.cpp(20) : error C2143: syntax error : missing ';' before 'if'
PHP Code:
# include <iostream>
using namespace std;
int seqsearch (int list[],int length,int key);
void main () {
int marks [30];
[Code] ....
C++ :: Variadic Template Basic Syntax
Jul 31, 2014I had to learn how to use variadic templates recently, and had trouble finding simple examples that just showed the basic syntax.
So I decided to write one myself. Admittedly, it's a bit on the long side, but that is mostly because it includes five specializations.
insert Code:
// Variadic.C
// Compile command: g++ Variadic.C -std=c++0x
// I used GCC version 4.6.3 on Ubuntu.
// This file contains a basic variadic template with five specializations.
// It is intended for non-software engineers who are looking for a simple
// example of variadic template syntax.
[Code] ....
C :: Random Number Syntax In A Struct
Jan 18, 2014I can’t figure out the syntax on how to generate random numbers for two members of a struct. It seems so simple because I know what I want to do, I just can’t make it work. I have the random generators I want but I don’t know how to pull it over into my struct.
Code:
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
struct student {
int id;
int score;
[Code] ....
C++ :: Vector Syntax - Resize And Reserve
Mar 7, 2014We can construct vector in following ways
vector<int>v1; //create an empty vector
vector<int>v2(arr,arr+4); ///to create vector from an array
vector<int<v3(v2); //throuh copy constructor
But I have come across some program in a forum,they have create vector like this
vector<int>v(10,5)
I am clueless ,is this allowed?,what syntax allows this?
if a vector is create like this
vector<int>v(3);
v.push_back(1);
v.push_back(2);
v.push_back(3)
v.resize(2);
Now I am curious to know what are the changes those will happen in vector v because of resizing it?
C++ :: Syntax To Use vector Within Struct?
Apr 9, 2014What is the proper syntax to use a vector within a struct? Here's an example of what I want to do:
#include<iostream>
#include<string>
#include<vector>
using namespace std;
struct myStructure {
float number;
vector<string> nameList();
[Code] ....
There must be some way to clear that vector. Why this doesn't work?
C/C++ :: Dynamic Array Of Pointers Syntax?
Sep 23, 2014I know that the synatx for a dynamic array of values is, for example:
int* a = new int[size];
And i understand that "a" is a pointer to the 1st element of the array on the heap.
Now, the syntax for a dynamic array of pointers is:
int** b = new int*[size];
C/C++ :: Java Object Equivalent Syntax
Mar 8, 2014Is there similar syntax in c++ that acts like and Object in java?
E.g. :
public void foo(Object someObject){
if(someObject instanceof someClass) {
}
}
C/C++ :: Expression Syntax In Function Main
Sep 11, 2012i wrote a program on implementation of stacks using functions (data structures )...but i got expression syntax error in function main.....
View 2 Replies View RelatedC/C++ :: Declaration Syntax Error Handling
Jan 30, 2015void main() {
clrscr();
cout<<" Menu";
cout<<"
1. Display all the employees' info.";
cout<<"
2. Display specific employes' info.";
cout<<"
3. Display employee with max salary.";
[code]....
Declaration syntax error at line 89, I don't get this everything is proper.
C++ :: Macro For Debugging New Through Operator New Syntax?
Aug 14, 2013It's common to see the following macros:
Code:
#define DEBUG_NEW new(__FILE__, __LINE__)
#define new DEBUG_NEW
and overloading operator new for debugging purposes. It usually works but there is a problem when use operator new syntax in code instead of directly use new. I can change my code but i can't change third party's code. Something like this:
Code:
int* j = static_cast<int*>(::operator new(sizeof(int)));
It's not common, but it appears occassionally.With that syntax, new macro generates compilation errors.
Is there any way to fix this problem?
C++ :: Linked List - Structure Naming Syntax
Feb 21, 2014I am looking at a linked list example, which uses structs:
typedef struct node {
int val;
struct node * next;
} node_t;
As you can see, we provide an optional name "node" that follows the word struct. And we can use "node" subsequently as a shorthand for the part of the declaration in braces.
But what is that node_t for? What is that doing?
C++ :: Call Function Syntax To Be Equivalent To Echo
Aug 19, 2014What I want to do is simple, however I can not find a way to do it in c++ and I don't know for sure that it is possible. I want to create a function that creates a simple short-hand for printf(x); Such as:
void echo(x){
printf(x);
}
But when I call the function:
echo "hi";//I want it to look like this
//instead of:
echo("hi");// like this.
C Sharp :: Getting Syntax Error In INSERT INTO Statement
Apr 6, 2012if (comboBox1.Enabled == true && textBox5.Text != "")
{
OleDbConnection con = new OleDbConnection();
con.ConnectionString = @"Provider=Microsoft.ACE.OLEDB.12.0;" + @"Data Source= c:usersmert" + @"documentsvisual studio 2010ProjectsPayrollCSWindowsFormsApplication7P ayrollDB.accdb";
[Code]....
this is my code. I am getting this error on "cmdole2" query.
error text is:
---------------------------
---------------------------
System.Data.OleDb.OleDbException (0x80040E14): Syntax error in INSERT INTO statement.
at System.Data.OleDb.OleDbCommand.ExecuteCommandTextE rrorHandling(OleDbHResult hr)
at System.Data.OleDb.OleDbCommand.ExecuteCommandTextF orSingleResult(tagDBPARAMS dbParams, Object& executeResult)
[Code]....
C++ :: Initializing Direct2D Class - Syntax Error
Mar 16, 2012I'm using a singelton class ( is this coded correctly?), and from the main class, im trying to initiliaze my Direct2D class, only I do get this error:
error C2143: syntax error : missing ';' before '.'
These lines gives it:
CSingleton.GetCDirect2DInstance()->CreateDeviceIndependentResources();
singleton.hpp
Code:
#ifndef CSingleton_h__
#define CSingleton_h__
#include "CDirect2D.hpp"
class CSingleton {
public:
static CDirect2D* GetCDirect2DInstance();
[Code] ....
C :: Prime Number Function - Declaration Syntax Error
Jan 8, 2014I wrote this program and compiled in turboc, but it gets error"declaration syntax error" .
Code:
#include <stdio.h>
int main()
int isprime(int n)
{
if(n<2)
return 0;
[Code] ....