Introduction Executing code during runtime that cannot be included in the main program is a common challenge faced by developers. This can be due to a variety of reasons, such as the code being too large or complex to include in the main program, or the code needing to be updated frequently. Fortunately, there are … Read more
From your non-understable question, I can guess that you want the vector to treat the [] operator as “edit if it is exist or create if it is not”. Some thing like the behavior of [] operator in std::map for example.. You simply can not. It was not designed like this. BTW, you may do … Read more
Compile error: Only assignment, call, increment, decrement, and new object expressions can be used as a statement [closed] solved Compile error: Only assignment, call, increment, decrement, and new object expressions can be used as a statement [closed]
Introduction Solved pattern programming is a type of programming that involves solving a problem by breaking it down into smaller, more manageable pieces. It is a powerful tool for problem solving and can be used to solve a wide variety of problems. Solved pattern programming is often used in computer science, engineering, and mathematics. It … Read more
!ev is evaluated as true if ev converted to bool is false, otherwise false. N3337 5.3.1 Unary operators 9 The operand of the logical negation operator ! is contextually converted to bool (Clause 4); its value is true if the converted operand is false and false otherwise. The type of the result is bool. 2 … Read more
If you like to create a piece of code having that many different variables with a different name, I suggest you start writing your own code generator. The code below should be a good start. #include <sstream> #include <iostream> #include <string> #include <vector> namespace { template <typename Function> void bitExecutor(int nrOfBits, std::vector<bool> &bits, const Function … Read more
Introduction Static variables are variables that are declared with the static keyword. They are used to store data that is shared across all instances of a class or program. Static variables are typically used to store data that is not changed often, such as constants or configuration settings. They are also used to store data … Read more
txtresult is the value of Name Property of used TextBox control in this code. You need to add a TextBox in your application and assign it Name property value ‘txtresult’ for this code to work. 2 solved linq beginner, foreach statement without declaration?
if(strcmp((argv[3][i]),”c”)==0) This line is wrong. argv[3][i] is a character, not a string. You probably want : if(argv[3][i]==’c’) 4 solved compare argv[1][i] arrays C++ [closed]
KeyState value = keys[key]; return value == KeyState::Up || value == KeyState::Down; Of course, those are the only two values you have defined for KeyState, so, as it stands… return true; 2 solved Find an enum inside unordered_map and get its value? [closed]
There’s no class by the name of Wpf. If you’re looking for the equivalent of System.Windows.Forms.Form, that would be System.Windows.Window. By the way, WPF is a complex framework in and of itself (not suitable for the unexperienced), I suggest you learn the basics of C# and OOP by practicing with some Console Applications first. 0 … Read more
You’re not updating the value of b inside the loop, so its value is always 6. You need to use an assignment operator to actually set a new value. So, use b = b + 3; or b += 3; instead. 1 solved Why is this while loop an infinite loop? High school introduction to … Read more
As others have mentioned in the comments, you should not be using insert in this case, you should be using push_back vectorB.push_back(*it); You would typically use insert if there is a specific position that you want to insert the new element. If you are not interested in adding the element to a specific position, then … Read more
NOTE: I am assuming that we do not have use every color. If we do, additional checks can easily be applied. Here is some code that can solve your problem (I think)… It uses a brute force / backtracking algo. Here is the output for 3 colors, and 2 by 3 grid. It prints every … Read more
Introduction The GetPixel() method is a Windows Graphics Device Interface (GDI) function that is used to retrieve the color of a pixel from a device context. When the GetPixel() method is used to retrieve the color of a white pixel, it will return a value of 0x00FFFFFF. This value is a hexadecimal representation of the … Read more