[Solved] pointer being freed was not allocated in C

by

You assigned outputMessage, which is an array and is converted to a pointer to the first element of the array, to messagePtr, so messagePtr no longer points at what is allcated via malloc() or its family. Passing what is not NULL and is not allocated via memory management functions such as malloc() invokes undefined behavior. … Read more

[Solved] Two format specifiers but only one argument [closed]

by

This is enough I suppose for explaining whatever you have shown. And the behavior you see can be anything given that it is undefined. From standard The fprintf function writes output to the stream pointed to by stream, under control of the string pointed to by format that specifies how subsequent arguments are converted for … Read more

[Solved] MYSQL How to perform custom month difference between two dates in MYSQL?

by

I think this query will do what you want. It uses (YEAR(CURDATE())*12+MONTH(CURDATE())) – (YEAR(STR_TO_DATE(join_date, ‘%d-%m-%Y’))*12+MONTH(STR_TO_DATE(join_date, ‘%d-%m-%Y’))) – – 1 to get the number of whole months of experience for the user, DAY(LAST_DAY(STR_TO_DATE(join_date, ‘%d-%m-%Y’))) – DAY(STR_TO_DATE(join_date, ‘%d-%m-%Y’)) + 1 to get the number of days in the first month, and DAY(CURDATE()) to get the number of … Read more

[Solved] KeyError in String Formatting of Raw Input

by

You need to use named arguments to use their name in the template: “…{name}….”.format(name=name, quest=quest, color=color) If you use positional arguments, then you need to use index in template: “…{0}…”.format(name, quest, color) Documentation: https://docs.python.org/2/library/string.html#formatstrings solved KeyError in String Formatting of Raw Input

[Solved] What are the following notations pointing to?

by

int arr[4][3][2] means arr is 3D array, consists four 2D array, each 2D array having three 1D array and each 1D array having two-two elements. Let’s Have a pictorial representation of arr : Assume arr base address is 0x100. arr[0][0][0] arr[1][0][0] arr[2][0][0] arr[3][0][0] 0x100 0x104 0x108 0x112 0x116 0x120 0x124 0x128 0x132 0x136 0x140 0x144 … Read more

[Solved] How to create multiple data frames from a huge data frame using a loop? [closed]

by

given that your data frame is named veryVeryVERYLargeDF lapply(colnames(veryVeryVERYLargeDF)[2:ncol(veryVeryVERYLargeDF)], function(nameOFColumnInveryVeryVERYLargeDF) cbind(veryVeryVERYLargeDF$ID, veryVeryVERYLargeDF[,nameOFColumnInveryVeryVERYLargeDF])) that will give you a list of somewhatSmallerDFs, where each somewhatSmallerDF is simply the ID column from veryVeryVERYLargeDF and one of the other columns from veryVeryVERYLargeDF 2 solved How to create multiple data frames from a huge data frame using a loop? [closed]

[Solved] $.on(“click”, function() | does not click. Element is dynamically generated [duplicate]

by

Use event delegation: $(document).on(‘click’, ‘.edit’, function(){ //function to edit tasks alert(“The check was clicked.”); }); var c = $(‘#c’); $(‘#add’).on(‘click’, function(){ c.append(‘<span class=”edit”><i class=”fa fa-pencil” aria-hidden=”true”></i> Hello</span>’); }); $(document).on(‘click’, ‘.edit’, function(){ //function to edit tasks alert(“The check was clicked.”); }); div { margin-top:10px; } .edit { width:25px; height:25px; margin: 0px 10px 10px 0px; background:#000; color:#fff; … Read more

[Solved] String prefix and Suffix separated by “: ” in Swift [closed]

by

You can use regular expression “(?<!:) ” to replace the white spaces ” ” occurrences where it is not preceded by colon punctuation “:”: let string = “Apple: Fruit Tomato: Vegetable Iron: Material” let pattern = “(?<!:) ” let result = string.replacingOccurrences(of: pattern, with: “\n”, options: .regularExpression) print(result) // “Apple: Fruit\nTomato: Vegetable\nIron: Material\n” solved String … Read more

[Solved] string equal doesn’t work c++

by

I suggest adding some debugging output to your program: while (!fileEn.eof()){ getline(fileEn,line); // Debugging output std::cout << “en[” << i << “] = ‘” << line << “‘” << std::endl; en[i]=line; i++; } and for(int i = 0; i < 100; ++i){ Matn >> matn[i]; // Debugging output std::cout << “matn[” << i << “] … Read more

[Solved] graphics in c and c++ [closed]

by

In addition to the backslash issue in the path, it’s extremely unlikely that you are using a 3270 compatible display. Why don’t you pass in the address of a with a=0. ab must be set to a requested mode unless you set the driver to autodetect, which will then select the highest available mode. See … Read more

[Solved] How to reuse a form ( and change its context when needed) to avoid multiple identical forms? C# [closed]

by

Why do you need a new form class for each country? The idea of a class is that it holds common behaviours. A form is a class. just instantiate an instance of the class with the data that it needs to display. Create a data class to encapsulate the data that the form shows (like … Read more