comming from other programming language why can’t I do this in c++: Because in C++ to initilize variable types on the left and right side of = must be compatible. In your case: myClass mc = new myClass(); mc has type myClass and expression on the right has type myClass *. So you either need … Read more
What you can do is: If Creation fails pass back a bool and try again from scratch. public void Generate() { Fill(); while(!Fleet()) { // I assume Fill clears your board again?! Fill(); } } public bool Fleet() { return Ship2(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) && Ship3(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) && Ship3(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) && Ship4(Utility.R(1,9),Utility.R(1,9),Utility.R(4)) && Ship5(Utility.R(1,9),Utility.R(1,9),Utility.R(4)); } public bool Ship2(int x, int … Read more
#include <map> #include <string> #include <iostream> std::ostream& operator<<(std::ostream &os, std::pair<std::string, int> const &s) { os << s.first << ” served ” << s.second; return os; } int main() { std::map<std::string, int> servers; servers[“foo”]++; servers[“foo”]++; servers[“foo”]++; servers[“foo”]++; servers[“bar”]++; servers[“bar”]++; for (auto s : servers) std::cout << s << ‘\n’; } solved How to use map container?
1) Change the beginning of your file from this: #include “stdio.h” #include “string.h” #include “iostream.h” #include “conio.h” to this: #include <cstdio> #include <cstring> #include <iostream> #include “conio.h” using namespace std; 2) Rename the class log to mylog, log is a standard function already defined via #include <iostream>. 3) Remove the calls to clrscr(), there is … Read more
At the top of your Visual Studio, you should see the build configurations dropdown. Set that to “Release”. Go to the properties of your project. Note, project, not solution. If you have multiple, this should be the one set as startup project. In the properties, go to the “Build” tab. Scroll down a little and … Read more
I found a solution to my problem. First let me explain how I achieved this: I made 2 watchdog threads that the first one recreates the 5 threads and WatchDogThread2 when terminated and the second one does the same to watchdog 1 (this took me to long because of Thread.IsAlive was always returning true even … Read more
This seems like the easiest way to do it. if(currObj->GetDataVal() < 0) negativeCntr++; 1 solved Need help, need to count the number of negative values inside a linked list, C++ [closed]
As you mentioned “I did not understand what the code is doing”, let me briefly describe how to iterate through a container: The long way: vector<int> result = { 1,2,3 }; for (vector<int>::iterator it = result.begin(); it != result.end() ; it++) { int i = *it; cout << i << ” “; } Each container … Read more
Macros (#define MACRO …) are processed by the C preprocessor before the actuel compile process takes place. So the compiler only “sees” this once the file has been preprocessed: int main() { // your code goes here int k = 0; scanf(“%d”, &k); switch (k) { case 1: break; case 2: break; case 3: break; … Read more
This type of syntax is called a ternary operator. They are generally used to perform simple expressions, or assign things to ONE variable based on a condition, rather than handle assignment logic with two variables. This is why you can’t have both a = TRUE and b = TRUE in the ternary operator. You should … Read more
Here’s my best guess at the code you meant: #include <iostream> using namespace std; char *mystring = “thestring”; // extremely dangerous type mismatch, don’t do this int msize = 200; int myfunc(int x) { int y = 20; x = x + y; return x * y; } int main(void) { int *px = new … Read more
It is probably implemented something like this: class EventArgs { public static readonly EventArgs Empty; static EventArgs(){ Empty = new EventArgs(); } } 5 solved EventArgs.Empty is a field that goes in circles. How can this be possible?
I am suffering this error: (58,19): error CS0019: Operator ‘-‘ cannot be applied to operands of type ‘string’ and ‘int’ [closed] solved I am suffering this error: (58,19): error CS0019: Operator ‘-‘ cannot be applied to operands of type ‘string’ and ‘int’ [closed]
To get the expected output, you can make the outer loop loop from word.length() – 1 down to 0 instead: #include <cstddef> // std::size_t #include <iostream> #include <string> int main() { std::cout << “Enter the word:”; if (std::string word; std::cin >> word) { for (auto i = word.length(); i–;) { // <- here for (std::size_t … Read more
I need to develop a graphical user interface using QT. Here I need to link a c program to the qt designer/creator [closed] solved I need to develop a graphical user interface using QT. Here I need to link a c program to the qt designer/creator [closed]