What is the correct way to return an 'Invalid Value' type in C++, without the...
I often use -1 as the invalid value type when returning from a function, where the input yields incorrect output. For instance, writing an indexing function where the index is out of bounds, instead of...
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how to send/get values from mainform label to Childform1 label and Childform2...
I'm Trying to send/get values from mainform label to Childform1 label and Childform2 label with VB.NETIf you see the gif (gif result code) in mainform then there appears ADMIN (LblUsername) and A...
View ArticleHow to print model method data from the controller as XML with CodeIgniter
I'm trying to figure out how to utilize data returned from my database. I have a simple query in the model:function feed_get_all_trees(){ $query = $this->db->get('trees'); foreach...
View ArticleWhat value does CodeIgniter's query() return when given a SELECT query?
I want to evaluate the return value of CodeIgniter's query() which is given a SELECT query to execute.For example:$get = "select filed_1 from tbl_ctc where ctc=?";$get =...
View ArticleHow to return 2 separate values from a function
I would like to return 2 different values with one function. These are my functions:function example1 ($a) { return $result1; return $result2;}function example2 ($edit, $account, $value) { $config...
View Articlestore return value of a Python script in a bash script
I want to execute a python script from a bash script, and I want to store the output of the python script in a variable. In my python script, I print some stuff to screen and at the end I return a...
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How to pass a single value from a CodeIgniter model method to Grocery CRUD's...
The query is always returning 1 and not the id I need. I want the id of 'intervaloshorarios' table which has its own 'cita'. For example, (8:00 am to 9:00 am) for the date: 27/08/1988. I need (8:00 am...
View ArticleHow to access the return value through the construct() from another function...
I'm trying to access the return value of the test() inside __constructor() but I stucked it. Can anyone tell me how I can get the return value from __constructor().<?phpclass some{ public function...
View Articlereturn value of a method in php
I have a small problem returning value of a php method.in a function works like i want but when i try to create a class and the proper methods i can return the value correct.if i use this function and...
View ArticleHow to access the return value of a model method call from a controller...
I'm having problem with my controller, I return the the last id I've inserted in the model.public function insert_cropsci($question_data){ $this->db->insert('cropscience_bank', $question_data);...
View Articlewhat is value- and reference semantics and the difference
What is value semantics and reference semantics and what is the difference between them? Can you please show me with an example in c.I guess in reference semantics that you just send an pointer to...
View ArticleWhen to choose between throwing exceptions or returning return codes?
This question is brought about by the below examples. I have approached a couple of people for their opinions, but still would like some more help and context from the general community.Here is an...
View Article"Invalid argument supplied for foreach()" error when iterating the data from...
I am using CodeIgniter MVC architecture to query a database and display results.The model does this:function currentfunction($id){ $query = $this->db->get_where('mytable', array("id =" =>...
View ArticlePython code always returns False, even if function is 'return True' [closed]
Using Spyder IDE with Python, I have a function that always returns False, even if the function is literally 'return True'I'm doing an online Python course and had to write code to see if all the...
View ArticleCumulative return value in C?
Currently following CS50 and learning recursion in C.This program returns the number of steps taken to get from n to 1, using the Collatz conjecture. I understand most of what's going on here, except...
View ArticleWhat does the return value of a `thrd_start_t` do?
In C, a thrd_start_t is a function with a signature of int (*)(void *). main returns an int as an error code to the instantiator, but in the case of a thread, we're the instantiator. I don't see any...
View ArticleShould I return EXIT_SUCCESS or 0 from main()?
It's a simple question, but I keep seeing conflicting answers: should the main routine of a C++ program return 0 or EXIT_SUCCESS?#include <cstdlib>int main(){return EXIT_SUCCESS;}orint...
View Articlecodeigniter not fetching data from DB [duplicate]
Email or password is not fetching from db for verification. model: class Login_model extends CI_Model{ public function login_valid($email,$password) { $q = $this->db-> select('*')...
View ArticleIntellij warning: Return value of the method is never used
I have some code that seems OK, but Intellij IDEA warns about many of its methods that return values thatReturn value of the method is never usedHere is the actual code below, a builder class.public...
View ArticleHow to return two tables in T-SQL using stored procedure or functions?
I have property details and I want vacant property & occupied separately in two different table as a return result. Kindly let me know is it possible to return 2 tables, as a result, using stored...
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