This is a very confusing question as it asks one question in the title, but the content addresses a different problem (threads crashing). To address the primary question: Microsoft did add a way to handle socket communications in a GUI thread friendly way: WSAAsyncSelect. This will send socket events as messages to your applications message … Read more
You should initialize last, otherwise it will be filled with garbage and according to your logic, it will print last. int last = arr[lengthOfArray-1]; int count = 0; for(int i = lengthOfArray-1; i >=0; i–){ if(last == arr[i]){ ++count; } else{ cout << last << endl; count = 1; } last = arr[i]; } if … Read more
I commented the changed portion and explained why. I didn’t change your code, so that you can understand easily. Try this : #include <stdio.h> #include <stdlib.h> #include <string.h> struct AdjListNode { char *dest; struct AdjListNode* next; }; struct AdjList { struct AdjListNode *head; // pointer to head node of list }; struct Graph { int … Read more
Requirements using System.Configuration; Read var appSettings = ConfigurationManager.AppSettings; string result = appSettings[key] ?? “Not Found”; Write var configFile = ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None); var settings = configFile.AppSettings.Settings; if (settings[key] == null) { settings.Add(key, value); } else { settings[key].Value = value; } configFile.Save(ConfigurationSaveMode.Modified); ConfigurationManager.RefreshSection(configFile.AppSettings.SectionInformation.Name); solved Error while saving changes to custom config file [closed]
I had got it using, Thanks fo the effort. String t1 = dt.Rows[0][1].ToString(); solved Get data from datatable into a string in asp.net
try this: DECLARE @YourTable table (Column1 varchar(50)) INSERT @YourTable VALUES (‘Frodo Baggins’) INSERT @YourTable VALUES (‘Samwise Gamgee’) INSERT @YourTable VALUES (‘Peregrin Took’) INSERT @YourTable VALUES (‘Meriadoc Brandybuck’) INSERT @YourTable VALUES (‘aa’) INSERT @YourTable VALUES (‘aa bb cc’) SELECT LEFT(Column1,CHARINDEX(‘ ‘,Column1)) AS Names ,RIGHT(Column1,LEN(Column1)-CHARINDEX(‘ ‘,Column1)) AS Surnames FROM @YourTable –both queries produce same output SELECT SUBSTRING(Column1, … Read more
Here is the sample code in C++,(Removed error checking) MainWindow.cpp: #include <windows.h> #include <iostream> LRESULT CALLBACK WndProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) { switch (message) { case WM_DESTROY: PostQuitMessage(0); break; default: return DefWindowProc(hWnd, message, wParam, lParam); } return 0; } DWORD WINAPI createyourwindow(LPVOID param) { WNDCLASSEXW wcex = { 0 }; wcex.cbSize = … Read more
printf(“%.3f+%.3fi”, ((-b) / (2*a)), (sqrt(d) / (2 * a))); You are using integer division in ((-b) / (2*a)) So you will get incorrect values for some numbers. You can use. printf(“%.3f+%.3fi”, ((-b) / (2.0*a)), (sqrt(d) / (2 * a))); to force a conversion to a double before the division. You need to do this for … Read more
In every function you are starting from array[-1], and in C/C++ you won’t get an exception it will just take what is in memory before the array. Change [student-1] to [student] and initialise sum to 0. Advice for future: don’t use ‘magic numbers’ in loops, declare them as a variable and then you can just … Read more
Your code has undefined behaviour: foo.cc: In function ‘std::__cxx11::string Generate(unsigned int, std::__cxx11::string)’: foo.cc:87:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ Turn on compiler warnings in your compiler and read them. Once you’ve done that and see that your code doesn’t do what you intended think of why Generate can not generate all … Read more
An example using a std::map as suggested in the comments could look like this: #include <iostream> #include <map> int main() { // a map from char (key) to int (value) std::map<char, int> ascii_map; // put the normal ASCII values in the map for(int ch = 0; ch <= 127; ++ch) ascii_map[static_cast<char>(ch)] = ch; // make … Read more
I copied the string into a new buffer. I struggled a bit to get this working. I don’t know whether it is what you wanted. #include <stdio.h> #include <stdlib.h> #include <string.h> int main(void) { int i, j, k; size_t count_comma = 0; size_t count_question_mark = 0; char question_mark[] = “question mark”; char comma[] = “comma”; … Read more
You could pass the model name as a non-const C string: char tmp[] = “res/models/nanosuit.obj”; Model ourModel(tmp); solved why this error become (C2664 error c++ Visual Studio)
Please note, the third for loop is nested inside the second loop. So, for each value of j in the other loop body like 0, 1, 2, the inner loop will execute for each time. If you’re bothered that after the first loop, j will be 10, then don’t worry, the statement-1 in the second … Read more
I think you should probably try to write some code before asking for help though! For reading in a value from the console you should use std::cin. A bit of guidance, you could take a look at the STL std::map class to help you prepare a mapping. Alternatively you could just use a long list … Read more