I'm completely new to pointers and have a homework assignment due where I'm supposed to create a user defined dynamic array for player scores. The only errors I'm experiencing is a C2109: subscript requires pointer type and only on the lines that use the int *score; variable (57, 62, 64, 69, 71, and 82). I've already tried adding = nullptr to the variable and that didn't work.
Code: #define FOO BAR #if FOO == BAR doX(); #else doY(); #endif
This causes doX(); to be executed. But the intent is to have doY(); be run. I'm guessing this is because BAR is undefined and therefore blank, so blank equals blank. Is there some way to compare the symbol FOO was set to instead of its value, BAR?
I have this program I wrote to calculate cost for the production of open top cylinders and how to translate it into user defined functions. Here are the user defined functions I need to use instruct() get_area() comp_area() and print_area_cost() so the program will be in 4 parts.
Code: #include <stdio.h> int main() {double radius,height,cost,single,all; float surface_area; int count; double pi=3.14159265; printf("Enter the radius of the base in cm^2:
I am trying to perform columnSum and rowSum, as well as twoDadd and twoDSubtract using the arrays defined in my driver. How would I do that using A and B in my driver?
I've got a game engine with a line-trace collision method which returns the first object it hits. I'd like to be able to pass it a class-type so that it can ignore objects of other types.
consider this pseudo-code:
Entity* TraceEntity( const Vec3f& LineStart, const Vec3f& LineEnd, const Type atype ) { // check collision on entities, ignore entities of type 'atype'. // return whatever it finds }
I'd like to do this without template classes because it will result in a significant bloat in executable size every time I decided to trace for a new entity type (I've really developed a distaste for templates for this reason)
using type_info only checks for an object's deepest subclass, so it won't work for class C : public B : public A if I'm looking for classes of type B.
I'm new to c++ and boost library also. I need to test a function of my library. For example
// Functions.hpp int add(const int x, const int y); //Functions.cpp int add(const int x, const int y) { return (x + y); }
Now i need to test add function using boost. I need the result or output in below style. What all settings do i need to do in VS 2010 and how i should include boost test in the project.
==== Run unit tests ==== Running 2 test cases... ./mytest.cpp(13): error in "SimpleTestInMainTestingModule": check 1 == 2 failed Test suite "Master Test Suite" failed with: 1 assertion out of 2 passed 1 assertion out of 2 failed 1 test case out of 2 passed 1 test case out of 2 failed
For my project, my professor is going to test each of our functions. And the functions of type string, he is going to input a value from 1-1 billion(from our calling program) and it should work. However it is not working. I tried putting in a value greater than 9, but it only prints out 1 + x. It should print whatever value I decided to input.
// COverloadingProj.cpp : Defines the entry point for the console application. #include "stdafx.h" #include "OverLoadingHeader.h"
The instructions call for the user to define the size of the array and all I have ever done is use a predefined size for the array and then let the user fill it. Here is what I have so far:
I need the user to be able to input the number of decimal places they wish to have displayed in the output. Everything works fine as is, I just don't know how to allow for the user to input the number of decimal places they want the output to have.
Code:
#include<stdio.h> #include<math.h> #define PI 3.141592654 int main(void) { //Local Declarations int x; //desired number of decimal places float radius; //radius of circle float circumference; //circumference of circle
I am writing some code to bubble sort a list of randoms numbers, 10 at the moment. I want to be able to user input the amount of elements that would be sorted. I think i'd have to use vector instead of arrays, but unsure how to do this. Or, how to be able to change the size of the array.
#include <iostream> using namespace std; #define SIZE 10
I am working on a program that uses a class I created called Student. I want to be able to add different students to a Binary Search Tree, and use the student's gpa (grade point average) to compare students with each other and place them in the correct location in the Tree.
Write a program to ask a user to input a symbol from the keyboard and to output that symbol in a n X n/2 sized V where n = the width of the V. You must use a loop to process the data
I am stuck at trying to figure out how to do the actual output formatting. This is where I am sitting currently.
string character = ""; int vheight = 0; Console.WriteLine("Enter the character you wish to use for your V: ");
[Code]....
so Im really just a bit stumped on how to get the actual V shape to be formatted..
Here STRING is a user defined class. how to assign a constant char array "FOOBAR" to string object? Copy constructor need to be same class type as parameter. and overloading assignment operator also need to be same class type. I think 'friend' can let pass another type of object rather than STRING to do operation on overloaded '=' operator. How could it be done if it is possible at all?
Write a program using user-defined function which is passed a string and that function should cycle the string.(Do not use any string related functions). E.g.
If the string is : Chetna then it should print as Chetna, hetnaC, etnaCh, tnaChe,naChet, aChetn
I am getting a compilation error from the code below. It is when i am naming a variable with my user defined type.
#include<iostream> #include<cstring> #include<cstdlib> using namespace std; class person {
[Code] .....
C:Dev-CppTRIAL.PASS.!!!.cpp In function `int main()': 66 C:Dev-CppTRIAL.PASS.!!!.cpp expected primary-expression before "p" 66 C:Dev-CppTRIAL.PASS.!!!.cpp expected `;' before "p" 74 C:Dev-CppTRIAL.PASS.!!!.cpp `p' undeclared (first use this function) (Each undeclared identifier is reported only once for each function it appears in.) 83 C:Dev-CppTRIAL.PASS.!!!.cpp `X' undeclared (first use this function)
The output I'm getting here just counts every letter in the sentence and counts them as vowels. I'm trying to make the user defined function return the amount of vowels within the sentence.
We had to write a "selling program for computers, laptops and tablets", which I did but for the extra credit, we have to have those three points in the application and I have tried but how to do the "extra credit" part, which I really need.
1.) A loop to prompt the user if they would like to place another order
2.) At least one user-defined function
3.) An enumerated data type, array or struct (structure)
I did one of these three, it's a "DO WHILE" loop asking users if they want to make another order, it's right at the beginning of the code.