[ad_1] It looks like you are using a variable called destination in this line webClient.DownloadFile(“http://i.imgur.com/” + picture, destination + picture); however you have not declared that variable and assigned it a value inside the buttonStart_Click method. You have a variable called destination declared in the buttonSaveTo_Click method, if this is the value you want to … Read more
[ad_1] //loop through the 2d array for(int i = 0; i <= boardsize; i++) { getline(fin, line); for(int j = 0; j < boardsize; j++) { if(i != 0) board[i][j] = (int)line[j]; } line.clear(); } needs to be //loop through the 2d array for(int i = 0; i < boardsize; i++) // note < instead … Read more
[ad_1] File formats are specification of structure of a file. They’re usually in binary but in your case and in many other cases, they’re text. The first thing you need to do is decide on the structure of your document and then read it like by line. You can also use tools that make this … Read more
[ad_1] }throw; A throw without following expression can be used inside an exception handler to re-throw the currently handled exception. However, at this point your program does not have an active exception. In this case, throw calls std::terminate(). This seems to be an edit artifact. [ad_2] solved Terminate called without an active exception : LeetCode … Read more
[ad_1] In this: if (Question == whats the weather?) Add quotes around the sentence. You want to write if (Question == “whats the weather?”) Also, since you’re using namespace std, you don’t need std:: before anything. 2 [ad_2] solved How to use if commands with sentances [closed]
[ad_1] This was a trick question: you are supposed to use recursion, but unless you are barred from using loops, a classic solution with a for loop can be made to comply with the recursion requirement. Here is a function isPrime that has a single argument and uses a classic loop and recursion to test … Read more
[ad_1] Regarding the code: for (int i = 0; i <= n; d[i, 0] = i++) { } A for loop has four parts: Initialisation, performed before any iterations of the loop are done. If empty, no initialisation is done; Continuation condition, a condition that must be true in order to execute the body (on … Read more
[ad_1] NullReferenceException: Object reference not set to an instance of an object in Unity Wave Function Collapse [closed] [ad_2] solved NullReferenceException: Object reference not set to an instance of an object in Unity Wave Function Collapse [closed]
[ad_1] Calling functions from parent class directly is easy as the following: std::stringstream myobj; myobj << “Something…” myobj.std::iostream::flush(); Above example calls flush() directly from std::iostream (which is a typedef of std::basic_iostream<char> ). It is also possible to member functions from parent class of parent class: myobj.std::ostream::flush(); [ad_2] solved How to call functions from parent class … Read more
[ad_1] I’m offering two solutions. The first formats the input as Pascal Case. static void Main(string[] args) { Console.WriteLine(ToCamelCase(“camels-drink-LOTS-OF_WATER”)); Console.ReadKey(); } public static string ToCamelCase(string str) { // This holds our output StringBuilder sb = new StringBuilder(); // Step 1 – split input into array of words string[] res = str.Split(new char[] { ‘-‘, ‘_’ … Read more
[ad_1] ((short *)((((char *)(&arr[1])) + 8))[3] = 100 &arr[1]: is the address of the second int in arr (1*sizeof(int) from start). ((char *)(&arr[1])) : converts int address to a char address (((char *)(&arr[1])) + 8) : adds 8 bytes to the char address ((short *)((((char *)(&arr[1])) + 8)): converts the char address to a short … Read more
[ad_1] Because these parameters are not being passed by reference, setting them to any value will only change the value of the parameter variables local to your helper method: it will not impact the values that were passed in to those parameters. Since you don’t use the new values you’re assigning to those parameters inside … Read more
[ad_1] Well, what you just need is to iterate the lines of your file and see if the line contains the word you want. If it does, just print the line. Here is the core of what you need: while (getline (MyReadFile, myText)) { if(myText.find(yourString)!=std::string::npos){ cout<<myText<<\n; } } The if statement checks if it the … Read more
[ad_1] You cannot return a pointer to a local variable since those are allocated on the stack (and the stack may get destroyed when the function returns). You’d need to allocate memory on the heap (preferably using CoTaskMemAlloc so the CLR can free up the memory later) on your C function and return a pointer … Read more
[ad_1] if you have the line already, it’s easiest to use sscanf() to do this: long a, b; if(sscanf(line, “%ld,%ld”, &a, &b) == 2) { /* Successfully parsed two long integers, now store them somewhere I guess. */ } Note that it’s a good idea to check the return value of sscanf(), this protects you … Read more