Advertisements Let’s say I have an array of non-blocking MPI requests initiated in a series of calls to MPI_ISEND (or MPI_IRECV). I store the request info in the array xfer_rqst. It is my understanding that when a request completes, its corresponding value in xfer_rqst will be set to MPI_REQUEST_NULL. Further, it’s my understanding that if… Read More Can an MPI_WAITALL call be skipped if all requests are already complete?
Advertisements I am a newbie in C++. I wrote this code to understand the difference between public, protected and private. The problem is, when I create an object of Hund4, I get this error: use of deleted function This error is in the last line. Can you please help me to solve this problem? #include… Read More error: use of deleted function 'Hund4::Hund4()'
Advertisements As far as I understand .NET concepts, the source code is first translated into an Assembly (IL code+meta data), which is compiled to machine code on the target machine with the CLR’s JIT compiler. However I cannot really match these concepts to what I see when working on a C# project. When I build… Read More Understanding .NET compilation
Advertisements Here is the code: func [] _ = 0 func (head:tail) num | head > num = func tail num | head <= num = head + (func tail num) main = print(func [4,1,2,5,7,6] 2 * 3) Here is my solution: 4 + func[1,2,5,7,6] 6 -> 1 + func[2,5,7,6] 6 -> 2 + func[5,7,6]… Read More Can someone help me understand this recursion in Haskell?
Advertisements I am trying to set up a class that initializes with a 2d array of an unknown size at compile time. I figured the best way to do this would be to pass the array as a pointer. This works as expected with a 1d array, but when I try to do the same… Read More Passing 2D array as class parameter
Advertisements I have two python lists: a_list = [1, 2, 3] b_list = [4, 5, 6] How can I do the following: create new text file —> convert lists to json string —> write lists into the file (each list should have its own line in the file) —> open the file —> read each… Read More How to write multiple lists into a text file where each list is written into a new line?
Advertisements I’m trying to create 2D array. int main() { int stalagmite[10][6] = { { 1, 0, 0, 1, 1, 0, 1, 0, 0, 1 }, { 1, 0, 0, 1, 1, 0, 1, 0, 0, 1 }, { 1, 0, 0, 1, 0, 0, 0, 0, 0, 1 }, { 1, 1, 0, 1,… Read More warning: excess elements in array initializer
Advertisements For example i have dao with 20 methods. type UserDao interface { GetUser() (User, error) GetUsers() ([]User, error) … } And i want create mock for tests and use only one method. type UserDaoMock struct { } fucn (UserDaoMock) GetUser() (User, error) { return User{} } There is a way to don’t implements other… Read More Go use struct as interface without implementing all methods
Advertisements I need a regex that checks whether a string contains the following characters ‘ " | \ / <> ; "Team’s<>".contains("/[\"’\\/\\\\<>;|]/;") val regex = Regex(pattern = "’.*’.*\".*\\|.*\\\\.*/.*<>", options = setOf(RegexOption.IGNORE_CASE)) regex.matches(input) >Solution : You could include all the characters you’re looking for in a simple character class and escape them. [\’\"\|\\\/\<\>;] If the regex… Read More Check whether the string contains special characters Kotlin
Advertisements with table like this I want to answer: Given the Employee and AnnualReviews tables, write a query to return all employees who have never had a review sorted by HireDate. Here is my query, kindly help to correction: Select LastName, FirstName from Employee a leftjoin AnnualReviews b ON a.ID = b.EmpID where HireDate desc… Read More How to write SQL query leftjoin?