Emerald214

1) This is exactly what I'm encountering. I googled for that but none of those posts talked how to do this: member function B::fb makes a call to _beginthreadex with thread function which is a member function ( A::fa ). 2) It generates error C3867: 'A::fa': function call missing argument …

When creating a new object, i can't decide to use "static allocation" or "dynamic allocation". Ex: [CODE] class A {...}; int main() { // A theObject; // or A theObject = new A(); ? } [/CODE] In some more complex cases, i don't know what i should do. Ex: Use …

I get the size of the integer array by using sizeof operator but the problem is: + Outside class: It outputs 3 (correct) + Inside class: It outputs 1 (incorrect) So how to fix it? Thanks [CODE]class A { public: A(const int a[]); }; A::A(const int a[]) { cout << …

I have 2 tables: Match and Team. Match(matchID is primary key, team1, team2, ...) Team(TeamID is primary key, ...) I mean how to force team1 and team2 is different from each other. Ex: We won't want to see: Brazil vs Brazil ^^ Any help is appreciated...

1) This is a sample OpenGL program. 2) I got this error when the console window (black screen) shows: freeglut Error: Function <glutDisplayFunc> called without first calling 'glutInit' 3) VC++ 2008, WinXP OS, Win32 consolde app project, all libraries installed. [code] #include <windows.h> #include <gl/glut.h> void display() { // clear …

1) This is a sample OpenGL program. 2) I got this error when the console window (black screen) shows: freeglut Error: Function <glutDisplayFunc> called without first calling 'glutInit' 3) VC++ 2008, WinXP OS, Win32 consolde app project, all libraries installed. [code] #include <windows.h> #include <gl/glut.h> void display() { // clear …

Excuse me, could someone help me? This code from an ebook and it isn’t wrong but it gives an error while being compiled. I don’t understand what error it is. error C2653: 'vector<int,class std::allocator<int> >' : is not a class or namespace name [code] #include<vector> using std::vector; int main() { …

I don't understand why **ptr is used in this code. Please expain to me. [code] template<class NODETYPE> void Tree<NODETYPE>::insertNode(const NODETYPE &value) { insertNodeHelper(&rootPtr, value); } template<class NODETYPE> void Tree<NODETYPE>::insertNodeHelper(TreeNode<NODETYPE> **ptr, const NODETYPE &value) { if(*ptr == 0) *ptr = new TreeNode<NODETYPE>(value); else { if(value < (*ptr)->data) insertNodeHelper(&((*ptr)->leftPtr), value); else if(value …

I use VC++ 6.0 1) This small program simply reads infomation from file “in.txt” and write it in file “out.txt”. (copy contents from this file to another) 2) It doesn’t work. The compiler issues an execution-time error. And the ouput text file “out.txt” is empty. 3) I don’t know why …

Hellp all! Hoping to make new friends here: Anyways, I am new to C++ and to programming. I just started reading the book "Problem Solving with C++, 7th ed." by Walter Savitch. I am already having problems. One of the programs I am trying to figure out (not in the …

I am trying to finish it but there is a problem. The overloaded operator>> doesn’t work in class Circle. Would you please explain to me what wrong thing I did? Thank you so much. [code=C++] #include <iostream> using std::cout; using std::cin; using std::endl; using std::istream; using std::ostream; #include <iomanip> using …