[ad_1] If you just want to read a string, try to convert to an integer, and exit the program if it’s not a valid integer, then you’d use int.TryParse, like this: string input = Console.ReadLine(); if (int.TryParse(input, out x)) { // do something with x } else { // input was invalid. } If you … Read more
[ad_1] Make sure your .h has a guard. #pragma once Either declare the function inline in your header: inline int added (uint8_t a, uint8_t b){ int r; r=a+b; return r; } Declaring it static works as well. static int added (uint8_t a, uint8_t b){ int r; r=a+b; return r; } Or, if your function is … Read more
[ad_1] You can try the embed widget: http://harmattan-dev.nokia.com/docs/library/html/qt4/qx11embedwidget.html with a valid windowId 1 [ad_2] solved How to show output video of other application in Qt?
[ad_1] You can always loop through all DataGridViewRows and set the Height property: foreach (DataGridViewRow row in dataGridView1.Rows) { if (heightShouldBeSet) { row.Height = yourHeightSetting; } } 1 [ad_2] solved how to increase rows size in DataGridView
[ad_1] I’m going to suppose that you are trying to make a deep copy of the argv array, with that being a NULL-terminated array of strings such as the second parameter of a C program’s main() function. The function you present seems to assume that you have already allocated space for the destination array itself; … Read more
[ad_1] Let’s consider your example… A = (5, 5, 1, 2, 3, 4, 5) If you consider the first element – 5 – then we know any solution must have one non-5 value at the other end, so we work backwards to find the first non-five, keeping track of the “front” and “back” locations we’re … Read more
[ad_1] Think about what the numeric values actually mean. When you treat a number as a Boolean condition, 0 is evaluated as false; anything else is evaluated astrue. So !0 evaluates as true, while !n evaluates as false for all non-zero values of n. Put differently, !strcmp(s,anotherVar[i]) is true when s and anotherVar[i] are the … Read more
[ad_1] That’s because constructor of A is called with N=0. When you input N, it doesn’t affect the vector at all. If you really want to keep using globals, then use std::vector::resize but the recommended way would be: int main(){ std::size_t n; std::cin >> n; std::vector<int> A(n); for(auto & x : A) std::cin >> x; … Read more
[ad_1] GOTO statements are useful ? Yes. But not for this use case. how I can go to initial stage of program again when user press Y There’s a control flow structure for going back and repeating. It is called a loop. An example: do { // do some stuff cin>>q; } while(q==’Y’); 2 [ad_2] … Read more
[ad_1] The problem is with this: char *name = new char; You’re only allocating 1 char, and that is not enough if you want to store into it something larger than 1 character (not to mention that you need another one for the null-terminator). Instead try something like this: char* name = new char[64]; // … Read more
[ad_1] In C++ (and many other languages), operator && is a logical AND operator, which yelds true only when both conditions are true. If any of the conditions is false, the whole statement is false. The code executes once because the do while loop actually tests the condition at the end, after executing. If you … Read more
[ad_1] From “New and delete (C++)” on Wikipedia: If not enough memory is available in the free store for an object of type T, the new request indicates failure by throwing an exception of type std::bad_alloc. This removes the need to explicitly check the result of an allocation. 2 [ad_2] solved what happens if I … Read more
[ad_1] Since you are not returning a DataSet, set your method return to void private void getData(HiddenField sDate, HiddenField eDate) // < — return void { jQueryUICalendar1.Text = sDate.Value; jQueryUICalendar2.Text = eDate.Value; } Either that, or just return a DataSet private DataSet getData(HiddenField sDate, HiddenField eDate) { jQueryUICalendar1.Text = sDate.Value; jQueryUICalendar2.Text = eDate.Value; DataSet myReturn … Read more
[ad_1] Assuming you mean itertools.product (it looks like it from the example given): public static List< Tuple<T, T> > Product<T>(List<T> a, List<T> b) where T : struct { List<Tuple<T, T>> result = new List<Tuple<T, T>>(); foreach(T t1 in a) { foreach(T t2 in b) result.Add(Tuple.Create<T, T>(t1, t2)); } return result; } n.b. struct here means … Read more
[ad_1] How to extract all functions out of a compiled elf file,even the function has no symbol You don’t define what is a function for you (and you really should). Notice that if the compiler has inlined a function, it does not appear in the ELF file, even if of course it exists in the … Read more