606 questions
0
votes
0
answers
62
views
Memory Management C# ref and out keyword [closed]
I've been working on this performance method where I'm passing parameters, and I'm not sure if I'm using ref and out right..Something just doesn't feel clean about how I'm handling these references. ...
0
votes
1
answer
41
views
mySql error #2014 - SET FOREIGN_KEY_CHECKS = ON; - Commands out of sync; you can't run this command now
I have read many posts on stackoverflow regarding this error, but could not find my answer.
I have created this procedure on MySQL 8.0 Standard via phpMyAdmin on a shared server :
DELIMITER //
CREATE ...
0
votes
0
answers
25
views
Luacov is not generating the xml output for Sonar
I am using luacov to generate the code-coverage.
I am able to see the coverage.out and using luacov-html I am able to get the index.html file as well.
But when I tried to post the report to Sonar, it ...
- 850
0
votes
1
answer
36
views
Add out_channel to pretrained model
I have trained a model fish.pth with 2 channels (fish and background). I want to add a layer so that I train a new model spine.pth which segments 3 classes fish, spine and background. Yes, I can do it ...
- 1
0
votes
1
answer
53
views
How is the out keyword able to assign back to a pointer?
The original snippet is easy to understand:
ref var l = ref Output22[0][i];
ref var r = ref Output22[1][i];
SpuReverb.Process(ref Reverb, l, r, out l, out r);
However, this using & also works:
...
- 16.6k
0
votes
0
answers
16
views
Regexp_extract in Hive
I am trying to parse out the words within a string and trying to use regexp. I am open to using any functions or logic that will work.
Example: in one of the columns i have:
Variable1 =‘Y’ and ...
0
votes
0
answers
73
views
How to zoom out on a mobile phone
I have a web page with a table and div that have fixed sizes. width="1200px" for example.
The menu adapts well on mobile with the @media value css.
Cordialy
If I look at the page on a PC ...
0
votes
0
answers
110
views
Unity Built-in shader, cutout + transparent
Is it possible to have a shader which uses both, cutout and transparency?
I need a classic built-in shader that uses cutout. But I also need the "full-opaque" parts to be transparently ...
- 21
0
votes
3
answers
131
views
Evaluate the result of a method and get its value, if true, without calling it again
I'm using ZWCad APIs and .NET, C#
I need to evaluate if two segments intersect.
There is a method that does this and returns an array of points.
So I'm evaluating if this method returns null. If it ...
- 150
0
votes
0
answers
43
views
issue: Not able to generate grpc.pb.h and grpc.pb.cc files
tried below command:
C:\UAproto\Source\OSS\grpc\tools>protoc -I=C:/UAproto/Source/Self/Auth/proto/ --grpc_out=C:/UAproto/Source/Self/Auth/Common/ --plugin=protoc-gen-grpc=`C:/UAproto/Source/OSS/...
-2
votes
1
answer
63
views
Passing on an out parameter [duplicate]
Is there a way to pass on an out parameter?
I want the out parameter to not be set in the function itself, but to be set in a function I call.
I'm unsure if I just got the syntax wrong. Here is what I ...
- 539
0
votes
1
answer
916
views
Dynamic pages are not available in nextjs app when i build the app for server upload
i made an webpage using nextjs (version 13.4.19) app in which i used dynamic routing.
It is working fine in local but when i build the app it is not creating dynamic pages. I am sharing folder ...
- 139
1
vote
1
answer
74
views
Default values for out parameters
Take this function:
public void GetOutlineDateAndMediaClassification(string talksdatabase, int talknumber, out DateTime date, out bool hasMedia)
{
date = new DateTime(1900, 1, 1);
hasMedia = ...
- 19k
3
votes
2
answers
83
views
Null-coalescing out parameter doesnt give error
This question describes a error related to using Null-coalescing, Null-conditional and out parameter:
Null-coalescing out parameter gives unexpected warning
The answer details the reasons for this ...
- 133
0
votes
1
answer
989
views
How to setup method out parameter to return mock in c#
I have service mock, which calls method, where one of parameters is out parameter.
How is it possible to out mocked object as this parameter, because I need to set up this mock further.
var ...
0
votes
2
answers
541
views
Can Golang (Win11) send messages to a TinyGo USB HID device (Badger2040)
Note: The following may be impossible - I can't find whether or not in the USB spec.
I am currently using a Badger2040 as a keyboard - using USB HID from TinyGo - which works fine.
I can also (which I ...
- 796
1
vote
1
answer
271
views
How can i edit a txt file without deleting the content in c++?
I want to create a database in a txt file and access it and edit certain parts of it using seekp(), but when I open the file to write in it , the program creates a new file deleting the previous one.
...
- 11
0
votes
1
answer
329
views
How can I update a reference returned from TryGetValue after its been inserted into a collection?
I have a dictionary inside a dictionary. I'd like to set a reference to the inner dictionary to a value after I'd added it to the outer dictionary as such:
var mammalIdSubscribers = new Dictionary<...
- 190
0
votes
0
answers
21
views
In MongoDB how to query an embeded array which has same key name
{
'_id': 103,
'name': 'Fleta Duplantis',
'scores': [
{'score': 84.37799696030743, 'type': 'exam'},
{'score': 15.95792143439528, 'type': 'quiz'},
{'score': 77....
1
vote
1
answer
111
views
How to add string in front of every character?
I tried this but I can't.
I want to add "pp" string in front of every character of input.
x=str(input("give me the characters"))
print("pp"+x[0]+"pp"+x[1]+"...
- 11
4
votes
3
answers
974
views
Value tuples exist, so why use the "out" parameter modifier? [closed]
Microsoft's documentation for the out parameter modifier points out the following:
Declaring a method with out arguments is a classic workaround to return multiple values. Consider value tuples for ...
- 1,590
0
votes
0
answers
192
views
Win32Exception: The wait operation timed out
When I make a backup using C# and SQL Server it gives this error
System.Data.SqlClient.SqlException: 'Execution Timeout Expired. The timeout period elapsed prior to completion of the operation or ...
0
votes
0
answers
51
views
Check50 failing my recover code on time out while waiting for program to exit fault
I have been on this problem all day but I cannot seem to discover what is wrong with my code and why it won't pass on check 50. If I try to make changes I would get a segmentation fault and I cannot ...
0
votes
2
answers
76
views
How to pass a variable into a function and return it modified?
I've been learning c# for about three weeks now so please bear with me. I got through some online courses with no problem but I've come upon what I think is a very basic, but very real barrier to my ...
- 3
0
votes
0
answers
64
views
How do I pass an "out int" parameter in BizTalk orchestration?
I have a method written in C#:
public static void MyMethod(string myString, out int myInteger)
...
In BizTalk orchestration I am declaring one variable as an int32 and setting it to "0".
...
- 21
1
vote
1
answer
88
views
How does the out parameter work internally?
class fff {
public static void jjj(out int j) {
j = 88;
}
}
//Main method
int jfjf;
fff.jjj(out jfjf);
In my main method I declare the jfjf variable which is not initialized in the ...
- 285
0
votes
3
answers
108
views
Like Statement to exclude some in the sequence
I need to run a like statement for 300 criteria and it looks like this;
how do i write a like statement excluding 112, 115, 116 ,117?
0
votes
1
answer
497
views
How to keep the changes made to a parameter?
I have a function that, under certain conditions, adds an object to a list.
void Func(out List<Move> moves, Move move)
{
if (conditions) moves.Add(move);
return;
}
I thought that ...
-4
votes
1
answer
259
views
Reference type function argument does not retain changes after function try catch block [closed]
Code below.
I completely understand reference vs value types. [correction, I do not completely understand reference vs value types.]
Today I ran into something odd.
I declare a datatable class var ...
- 36
1
vote
2
answers
983
views
bash : cat commands output only if it success
I'm trying to redirect a command's output in a file only if the command has been successful because I don't want it to erase its content when it fails.
(command is reading the file as input)
I'm ...
- 13
0
votes
1
answer
294
views
C# difference between ref and complex object as parameter
I'm curious what happens if I do not use the ref declaration for a parameter, instead pass the object it self and manipulate it within the function.
E.g:
public void DoStuff(DataPackage context)
{
...
- 881
2
votes
1
answer
411
views
Subscript out of range with copy a range in one workbook to another workbook
I have a range of data in a workbook that I would like to copy to the active workbook. The code looks simple, but I am getting a subscript out of range error when I run the code. What am I doing ...
- 59
-1
votes
1
answer
64
views
How to get value in the current method from external void async method in C#? [closed]
I have method e.g.
public async Task<int> AddUser()
{
//some logic
await _externalClass.DoSomething();
//some logic
}
And I want to get value from method await _externalClass....
- 139
-1
votes
1
answer
91
views
Filtering out by multiple criteria in R
I'm trying to create a separate df in R by filtering out observations based on specific criteria, but when using filter function from diplyr I only manage to create a df based on that criteria.
Can ...
- 23
0
votes
3
answers
1k
views
Why ref keyword needs to be initialized and out keyword needn't to be initialized before it is it passed?
Below are the MSDN reference links for the Out keyword and the Ref keyword.
Out Keyword
Ref Keyword
Both Ref and Out keywords are pass by reference, then why it is required for one to be initialized ...
- 379
3
votes
1
answer
1k
views
I don't understand why I'm getting the CS8347 error while trying to make an extension method
I was trying to create a simple extension method wrapper around CollectionsMarshal.GetValueRefOrAddDefault(..) and I ran into a problem I don't quite understand.
This code works:
public static ref ...
- 1,153
0
votes
1
answer
5k
views
Selenium Python timed out receiving message from renderer error
I want to add the plugin called metamask to my browser and check the amount of etherium in my wallet. But when I add the plugin, sometimes I get this error and sometimes I don't:
selenium.common....
0
votes
1
answer
154
views
changing value of variable on another scope with method in C#
I have came across strange method called "Recieve()" in .NET.Sockets
.Recieve() method changes buff variable without using ref or out. Can somebody explain to me pls.
Full Code:
...
-1
votes
3
answers
2k
views
Getting an error "string index out of range" in python
I was creating a code to encode an input word.Letters in the input text is converted to a number and stored in a list.Here is the code I used,
z=input("input the word:")
x= z.strip()
y= -1
g=...
user17328377
-2
votes
1
answer
400
views
keep getting 'list index out of range' while list is existing in python
I am trying to give the last element of at @2@ into <last_animal>, then use it to set the if condition. But it only brings me 'list out of index' message. Just in case, I tried to use a deep ...
0
votes
2
answers
3k
views
Multiple return variables - which has best performance (out, tuple, class)?
A method that returns multiple doubles can be realized in various ways:
Through out parameters:
class MyClass
{
static double Add3(double x, out double xp1, out double xp2)
{
xp1 = x + ...
- 1,186
0
votes
1
answer
153
views
C# Array of out params [duplicate]
I have tried to decrease the complexity of an customized ORM, therefore I'm trying to do something like this:
Mi problem is that I need to implement an out params Model[] variable
something like this,
...
- 251
1
vote
1
answer
101
views
How do I fix the "Index out of range" error in Python?
I am trying to create a record from a list of 6 items. The error tells me that rec[1] is out of range.
pay = open("paymast.txt","r")
sal = open("saltyp.txt","w")...
1
vote
4
answers
121
views
Using procedure class-wide out argument as function return value
type T is abstract tagged null record;
type T1 is new T with null record;
procedure Get_Value (Value : out T'Class) is
T1_Value : T1 := (null record);
begin
Value := T'Class (...
user15552120
1
vote
1
answer
1k
views
Saving output from "If statement" c#
I have a conditional as such:
List<HWSRunSession> session = new List<HWSRunSession>();
foreach (var item in fileInfo)
{
if(_db.HWSRunSessions.Where((x) => x.TransferredZipName == ...
- 641
0
votes
1
answer
3k
views
If-else statement logic with function out parameter [closed]
I am working inside a loop to test if an external connection exists. If the connection does exist, then I want to operate on it, pulling back information. If it doesn't, then I want to open the ...
- 33
3
votes
1
answer
2k
views
Google Colab - Completed but still running?
I have a large dataset (that I am trying to run. The cell has not generated an output; however, it currently says 'completed at [time]'. The cell still appears to be running and the is a message ...
- 31
0
votes
3
answers
872
views
The out parameter does not work in C#. Why?
The out parameter does not work in C#. Why?
Here is my code:
using System;
using System.Collections.Generic;
public class Program
{
public static void Main()
{
var ...
- 1,026
0
votes
0
answers
53
views
Assigning initial value when using the out key word c#
static void Main (string [] args)
{
int myNum;
Double (out myNum);
}
static void Double (out int myInt)
{
myInt=10; //need to assign a initial value here
myInt*=2;
}
In the above case I will ...
- 15
0
votes
1
answer
576
views
How to do an out on multiple variables in a dictionary?
I would like to do an out on multiple variables from a dictionary as in the following example:
string color;
int number;
float numval;
Dictionary<string, (string, int, float)> Property = new ...
