somestruct *mystruct defines a pointer to memory of type somestruct and does not point to anything, or better if it is local variable then it is not initialized and this is Undefined Behaviour. If you do this somestruct mystruct then you define struct itself and not a pointer (object exists in memory). To use pointer … Read more
[Edit] This is the answer to a previous version of the question, which showed the problem in action when calling these functions with argument dist==1 -(unsigned long)1 is well-defined and wraps around. It’s just ULONG_MAX. For the same reason, -(unsigned int) is UINT_MAX. Pointer arithmetic outside array bounds causes Undefined Behavior, so it’s perfectly reasonable … Read more
Using a toy example… df <- data.frame(a=LETTERS[1:10],b=LETTERS[3:12],stringsAsFactors = FALSE) limits <- c(“E”,”H”) sapply(df,function(x){ del.min <- grep(limits[1],x) del.max <- grep(limits[2],x) x[del.min:del.max] <- “” return(x)}) a b [1,] “A” “C” [2,] “B” “D” [3,] “C” “” [4,] “D” “” [5,] “” “” [6,] “” “” [7,] “” “I” [8,] “” “J” [9,] “I” “K” [10,] “J” “L” … Read more
you can use the Sort overload accepting a Comparison. This should work: public static int MyCompare(double x, double y) { if (x >= 0.0 == y>=0.0) // same sign, compare by absolute value return Math.Abs(x).CompareTo(Math.Abs(y)); if (x < 0.0) return 1; return -1; } usage: var list = new List<double>(); // fill your list // … Read more
All possible code paths must return a value. In this case, if none of those if conditions are satisfied, nothing is being returned. You must have a final else that returns something. public static char Feld(){ if (vertical == 1 && horizontal == 1) { return Feld11 = Player1; } else if (vertical == 1 … Read more
Your code add one to the number passed as digit array. So when you add 1 to 123, you get 124. The code starts with the last digit, looks whether it is less than 9, then add 1 only to the last digit. this happens in the if-block. The return ends the function The code … Read more
Sub HideRows() Dim i As Long Dim j As Long Dim hide As Boolean ‘loop through rows For i = 9 To 54 hide = True ‘loop in the row: B through AF column For j = 2 To 32 ‘if we found value greater then zero, then we don’t want to hide this row … Read more
The reason why you’re getting the same answer 5 times is because your do-while loop runs 5 times without changing the ‘creatures’ . System.out.println(a +” “+ b + ” ” + c + ” ” + d + ” ” +e); If you remove the do-while loop you’ll get the same answer only once however … Read more
In a situation like this you will need to weigh the pro’s and con’s of how you want to tackle this issue. Do you want to maintain uptime whilst you are working on the issue (least effective due to the site could still be being attacked) OR do you want to completely take the site … Read more
Try this use custom dialog for this purpose: Create layout like this custom_dialog_layout: <?xml version=”1.0″ encoding=”utf-8″?> <LinearLayout xmlns:android=”http://schemas.android.com/apk/res/android” android:layout_width=”match_parent” android:layout_height=”match_parent” android:orientation=”vertical”> <TextView android:layout_width=”match_parent” android:layout_height=”wrap_content” android:padding=”10dp” android:text=”title” android:textColor=”#000″ /> <TextView android:layout_width=”match_parent” android:layout_height=”wrap_content” android:padding=”10dp” android:text=”Lorem Ipsum is simply dummy text of the printing and typesetting industry. Lorem Ipsum has been the industry’s standard dummy text ever since … Read more
if vptr is created when object is created then why the size of class having virtual function comes as 4 on 32 bit sys and 8 on 64 bit machine solved if vptr is created when object is created then why the size of class having virtual function comes as 4 on 32 bit sys … Read more
Maybe something like this could work… Did this on my mac in sublime text so you’ll still have to work with. Should get the point though. public class Foo { List<int> main = new List<int>(100); List<int> rollingAverages = new List<int>(100); public void Add(int score) { main.Add(score); if(main.Count > 10) { int rollingAverage = AverageLast10(); rollingAverages.Add(rollingAverage); … Read more
Your question is a little vague, but for beginners in web design, you might want to use an iframe. It is a HTML tag that creates inline panel/window thing and is pretty easy to use. It looks something like this: <iframe src=”https://stackoverflow.com/questions/18302230/profile.html” width=”300″ height=”300″> <p>Text here will be displayed on a browser that doesn’t support … Read more
I know this has tons of downvotes, but you can cache your database queries. You can also mimic a CSS file using the header type in PHP. See http://css-tricks.com/css-variables-with-php/ This will allow the browser to cache the CSS file that was generated by PHP & MySQL. This means the database will only be called when … Read more
Why don’t you create a class and return a list of this class. For example public class BuildData { public int BuildQty {get;set;} public int FailQty {get;set;} public int ShiftHours {get;set;} } And then create a list List<BuildData> BuildDataList = new List<BuildData>(); You can then loop around your data like; while (ResultSet.Read()) { BuildData data … Read more