I would like to know if there is a way to make a function non overloadable. My idea is to keep it private in the class so that it will be impossible to overload the function in a derived class.
But if in the base class (the one that holds the private function) I also have a public or protected function (let's call it plf) to manage the private one (let's call it prf), and in the derived class I create a function with the same name as the private base class function (prf) that calls for the public base class function (plf), I am wondering if there won't be a conflict between both of the same-named (prf) functions?
Assuming the prf function of the derived class is not an overload of the prf function of the base class (because the last one is not visible).
Ok so I am working on a game and I'm in the process of developing my Player class. Anyways, what I have is a keyboard function that is called in my main function to make a shape move.
void myKeyboardFunction(unsigned char key, int x, int y) { switch ( key ) {
[Code].....
But when I try to call it, trying to copy my previous method,
glutKeyboardFunc(Player1.playerControls);
I get an error
error C3867: 'Player::playerControls': function call missing argument list; use '&Player::playerControls' to create a pointer to member
I get an error saying it can't convert parameters. I would just like to understand why the arguments become a problem when I make the function a member of my class, when the first method I used is so easy.
Im suppose to make a "poor mans" variation to the Sort function built into unix. The program is suppose to read in a file and sort the contents of the file. So its a variation of the Unix Sort feature. I have remade the readLine function we were provided so that it doesnt use fgets. where to go from here, Not sure on how to make a sort function. Here are the reqirements of the program:
Code:
• Re-implement the readLine() function so that it no longer makes use of fgets(). Instead, process the input on a given line character-by-character.
• Provide code which will create a data structure similar to argv to hold all of the words to be sorted. Use malloc() to ensure that each entry has just the required number of bytes needed to store the words. The final entry in your array should be the NULL pointer.
• Implement a sort() function which will rearrange the words in sorted order. To swap two words in your array, note that only a pair of pointers need to move. The strings themselves, once established, will never move. Heres what i have:
Code:
#include <stdio.h> #include <stdlib.h> #include <string.h> #define MAX_LINES 1000 /* maximum number of reminders */ #define WORD_LENGTH 10 /* max length of reminder message */
I will post the entire code at the bottom. Its running fine right now but This part in the menu function I need to make as a separate function. My problem is when I make it into a function by itself I have to declare and initialize the grades A,B,C,D,F how can I do that when I can't make them equal 0 because it has to keep track of how many of each letter grade.
Code:
//Count letter grade if(ave >= 90) ++A; else if (ave >= 80) ++B; else if (ave >= 70) ++C; else if (ave >= 60) ++D; }
But how to define a shape (say a circle by that cir() function which is) outside of the main() function? And how to attach it to be visible on window win?
I know how to define a shape (here, a rectangle) and attach it to a window in C++ as follows:
#include <Simple_window.h> void cir() { Circle c(Point(100,100),50); } int main() { Simple_window win(Point(100,100),600,400, "test"); Rectangle r(Point(100,100),Point(300,200)); win.attach(r); win.wait_for_botton(); }
But how to define a shape (say a circle by that cir() function which is) outside of the main() function? And how to attach it on the window win to be visible?
I have a class called items and stored in a vector as vector<items*> item.now I want to make a function to return the placement # that the item is stored at with a unsigned int. but if I don't find the item is there like a null unsigned int that can be returned.
unsigned int someFunc(vector<items*> item) { unsigned int size = item.size(); for (unsigned int i = 0; i < size; ++i) { if (item[i]->getItemName() == "sword") { return i; } } //i need code here incase the item is not there }
because the item might not be there and i would like to do a line if(unsigned int) do this code
We have to make a function integrate to work with the other functions given. I had it working before but I would only get all -4 as my answers but only the first one should be -4. what should more or less be put in my integrate function?
I need to create a function with the following prototype:
bool isPermutation( const unsigned a[], unsigned elements );
unsigned a[] = {3, 0, 2, 1}; bool P1 = isPermutation( a, 4 ); would set P1 to true because the set of subscripts is {0, 1, 2, 3}, and the values are just a reordering of those values. On the other hand,
unsigned a[] = {3, 0, 2, 3}; bool P2 = isPermutation( a, 4 ); would set P2 to false because the set of subscripts is {0, 1, 2, 3}, but there’s no value that’s equal to 1.
I'm not exactly sure how to do this. I thought about it a couple different ways. I first thought about taking the range (max/min) and then checking to see if the numbers in between are equal from each other, distance-wise.
I then thought that I should just make this basically a sort function (I used bubble-sort), and then to just check if the numbers are equi-distant from each other.
This is my basic bubble-sort. Perhaps it is wrong, but I'm not certain...Perhaps I am making this function harder than it has to be.
unsigned temp = 0; for (unsigned i = 0; i < elements; i++){ for (unsigned k = 0; k < elements-1; k++){ if (a[k] > a[k+1]){ temp = a[k+1]; a[k+1] = a[k]; a[k] = temp; }}}
Should I do a sort like this, and then do something where I subtract a[i+1] - a[i], and see if that equals '1'?. I would think that would mean they would have to be equidistant. Even if this is correct, I feel like it could be more efficient.
if there is a way to make Visual Studios step into a function while I am debugging.. I am trying to see the value of a certain int and making sure it is what I need it to be.. but whenever I use step into visual studios just skips right over the function and it does all the calculations..
// How can we write resize function for Matrix2 class; where this function need to use Protected data members of matrix1 class? Only setters are available in Matrix 1 class but there is no getter function in Matrix1 class !
How to how to make a function prototype that uses variables by reference. I'm making a decision based game where two running totals of two variables (ending and morality from decisions made) will decide the game outcome. I only have a few modules put in so far and most of the "story" parts cut down here to save space. I'm also getting an error saying there is more than one instance of overloaded function for the "whatToDo" module.
// ZombieGame.cpp : Defines the entry point for the console application. // #include <stdlib.h> /* srand, rand */ #include <time.h> /* time */ #include <iostream> using namespace std; //These are function prototypes to declare the functions being used void WakeyWakey(); void TwentyMinsLater(int);
How can we write resize function for Matrix2 class; where this function need to use Protected data members of matrix1 class? Only setters are available in Matrix 1 class but there is no getter function in Matrix1 class !
I know how to define a shape (here, a rectangle) and attach it to a window in C++ as follows:
Code: #include <Simple_window.h> void cir() { Circle c(Point(100,100),50); } int main() { Simple_window win(Point(100,100),600,400, "test");
[Code] ....
But how to define a shape (say a circle by that cir() function which is) outside of the main() function that is how to create a circle inside of the cir() function and it returns that circle when I called it in my main() function so that I can attach it on the window win to be visible?
How do i make the srand() function make new numbers every time i call it? Now it seems like it repeats its result over an over again.
Below is a program that should generate random numbers for 3 dices and print these out. But it prints out the same nr over and over.
Code: #include <stdio.h> #define MAX 100 int filler(int dice1[MAX], int dice2[MAX], int dice3[MAX]) { int throws, nr; printf("Define the number of throws"); scanf("%d", &kast);
So I need to make a main function have no if/for/etc. statements so I need to move it to another function and call it in main. The problem is that it's a command line argument function so I'm confused on how it works. Here's an example:
Code:
#include <stdio.h> int main(int argc, char* argv[]) { printf("The program name %s", argv[0]); if (argc == 2) { printf("Argument supplied is %s", argv[1]); } else if (argc > 2) { printf("Too many arguments");} else { printf("One argument");} }
How can i make this into two functions with main only declaring variables and calling other functions?
#include <iostream> double fact (int f); //declaration of factorial function double power(double x, int y); //declaration of power function double sin(int x); //declaration of sine function //double cos(int x); //declaration of cosine function //double tan(int x); //declaration of tangent function
im trying to read in 1 array and get 2 as outputs from 3 different functions.my read array is easy enough were im getting confused is how to read that array, separate it and take out only the parts i want and place them into a 2nd, then again a 3rd array.i have the following so far:
this compiles without a complaint, but when i go to run it no longer responds after taking the 10th element (well 9th if counting from 0).I think i have the if correct for the even odd section, but when i try to populate B or C array with the output of that if statement from A is were i think things are dying...
I have this code it sums the rows now I need it so it would sum all the columns in the output and put it in row 8 of the outcome. How would I go about doing that?
Code:
#include Code: "stdio.h" #include "stdafx.h" int main(void) { int number[8][7]; }
i am using turbo c++ my program is based on maths equations and my final answer is 918 or any 3 digit number only but i don't want 918 to print instead i want only 18 to print. this program gives different output for every different input so i can't just minus 900 from it and get 18. i just want that no matter what 3 digit number is the answer,i just get the 2nd and 3rd digits while printing it and not the first.
the final answer giving equation is:- f=2914-1996 where f is my answer and its 918 but i want it to print as 18 not 918
I want to make a window tgat stays always on top like that of a cybercafe software. A window that cannot be closed, minimised, deactivated, etc... with wxWidgets.
So far I've tried making a frame window with the wxSTAY_ON_TOP flag. It works, but not to perfection because, when i press the windows button, the start menu interferes with the window(and taskbar too). Also, the task manager, how to deactivate it.
