Questions tagged [error-handling]

The various techniques used for maintaining stable program state in circumstances that, if not taken care of ("handled"), could cause serious issues, including logical bugs and abrupt execution termination.

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37 views

Would compiler optimization remove try/catch block if catch does nothing? [migrated]

I am working with code that has a lot of try catch blocks in but most cases the catch blocks ...
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138 views

2D Maze Game with Monsters

Introduction I've started to learn C programming a bit and wanted to create a simple 2D console game. Let me first introduce you to the game level/map structure: ...
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36 views

Rust Error Handling - Can this error handling be made cleaner?

Recently I started to learn Rust. I come from a mostly Java background, but spent roughly the last two years in Go. I am working on converting a small microservice that reads data from Kafka and ...
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19 views

Setting Wallpaper with Xlib and ImageMagick cli

This program reads raw pixels from the pipe/stdin in a loop and set the root window background. ...
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1answer
38 views

Archiving MongoDB data to S3, with retryable steps

I have a python script to archive some data (export from mongo to a local json file and then upload it to s3) Is there a better way to implement/improve the current flow? Each step should be be ...
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67 views

Android APP FTP downloading file implementation in Java

This is a follow-up question for Android APP connect to FTP server in Java and Android APP FTP uploading file implementation in Java. I am attempting to perform the download operation to specified FTP ...
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1answer
56 views

Open, writing to, and closing a configuration file, and error checking the process in C

All this does is safely and reliably opens, writes to, and closes the file. Yet there are so many gotos and the code is quite verbose. I am not even sure that all ...
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127 views

Exception handling: using @JsonProperty value to make error message

If the validation in RestController fails, I need to handle MethodArgumentNotValidException and provide an errorMessage, that ...
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1answer
33 views

SubImage function implementation in C

This is a follow-up question for Two dimensional gaussian image generator in C, Two dimensional bicubic interpolation implementation in C and A SubPlane Method for Generic Two Dimensional Data Plane ...
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1answer
60 views

Android APP FTP uploading file implementation in Java

This is a follow-up question for Android APP FTP host profile class implementation and Android APP connect to FTP server in Java. I am attempting to perform the upload operation to specified FTP ...
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1answer
38 views

Android APP user registration page implementation

This is a follow-up question for Android APP User class implementation. I am attempting to build a user registering system and this post shows the user registration page implementation. The ...
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1answer
44 views

Android APP Password Strength Assessment class implementation

This is a follow-up question for Android APP User class implementation. I am attempting to create a password strength assessment class which is named ...
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2answers
83 views

Custom Error Handler Library in C++

Is this code clean and optimized? When taking memory snapshots, it seems a bit high. Anything I have done wrong or can do to optimize it? ...
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Access object initialized within try block afterwards if no exception occured

I have a use case where I try to initialize a Player object within a try block. The relevant excerpt of the current, working ...
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2answers
218 views

Should i throw exceptions in the service layer or repository, and catch it on the controller? [closed]

I read some answers here on stack exchange, but none really "hits the nail on the head" about where to throw exceptions, where I shouldn't and where to catch them. the idea that an exception ...
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41 views

Stop Django Rest Framework API execution and return appropriate response

I am writing an API function using Django Rest Framework where it accesses many resources like AWS, Database, External APIs etc., I want the API execution to stop if it fails in any of the steps and ...
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2answers
115 views

C ArrayList implementation

I have written a ArrayList class in C and I just wanted some criticism on what I can improve on. Any criticism helps, and I was wondering if there is any better way of doing error handling other than ...
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1answer
68 views

Rethrowing unhandled exceptions later in the catching method [closed]

I have a worker class that catches uncaught exceptions and logs them for tracking purposes. However, I do NOT want to swallow those exceptions, nor do I want to abstract them (i.e. losing the stack ...
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3answers
254 views

ArrayDowncasters Implementation for Downcasting from System.Array to Array of Specific Type in C#

I am working with System.Array and I am trying to convert System.Array objects to array of specific type (such as ...
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1answer
42 views

Parsing a u8 separated vector of FromStr from a BufRead

I need to read a vector of e.g. integers from a stream, usually from stdin but sometimes also from a file. The input is always less than a megabyte, and is sometimes separated by commas and sometimes ...
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1answer
164 views

Read and sort 100 numbers from a text file

The program itself reads 100 values from a text file named input.txt. Then sorts those values in ascending order and writes the values to a new file called ...
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1answer
77 views

Create Table After Deleting Rows Before Desired Range and Filter to Delete All Other Unnecessary Rows

The code below first searches for the first searchText and deletes all rows that precede it to establish a range for a table object. Once the table object is ...
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1answer
209 views

C++ custom exception handling using std::error_category and std::system_error

I want to make my own custom exception handling and I am curious if I am going the right path, maybe some of you could suggest to me how I could improve it? Or maybe I have went the wrong direction? (...
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2answers
168 views

Library displaying a format with runtime errors, exceptions, and error exceptions present

I have this Library to control errors; I would like if you can evaluate it and make a review of the code, not about the goals of the library: Everything works for me correctly, but I am also open to ...
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1answer
48 views

C++ Error/exception handling [closed]

I know the following code are horrible, so I'd like a review. Criticism are welcome. I want to know what went wrong, and how I can avoid the same mistake in the future. Version 1 ...
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1answer
78 views

Modify original JSON few times and post http request

Follow up question from here. I am working on a project where I need to do below things in Python: Take few input parameters like - environmentName, ...
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1answer
266 views

Post json using http and verify whether all actions completed successfully or not

I am working on a project where I need to work with http apis and call them using Python language. Below is what I need to do: Take few input parameters like - <...
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2answers
93 views

Error Code Stack Trace and Propagation Library in C

I've been programming in Go and I enjoy how easy it is to create descriptive errors and propagate them up the call stack. I wanted that sort of ease and consistency in C so I created a small error ...
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1answer
385 views

Handle database validation (exists, unique constraint, etc) [closed]

Let's assume you are writing a REST Api with a common structure like Controller > Service > Repository > Database. In the database there's a table with a column with a unique constraint: <...
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1answer
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Using a linked list as an error type

Background I've been looking into a few different way to implement error reporting for an embedded system in C and there a couple things that I'd like to incorporate: A generic and extensible error ...
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2answers
637 views

Binary to decimal (and back) converter in c++

I'm mainly looking for error checking / type safety advice. main.cpp ...
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3answers
1k views

Error solution: Uncaught TypeError

Uncaught TypeError: document.getElementById(...) is null I have a single JavaScript file that is connected to multiple pages. The below snippet is a function that is used for a single page. The above ...
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1answer
259 views

HSTS Recommendations in .htaccess

Please see my previous post in the below hyperlink I've updated my .htaccess file to account for an HSTS, along with many of the recommended changes. See the ...
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53 views

Building a GTD Productivity App Designed through Test Driven Development (TDD)

First, thanks so much for looking at my code. Over the past decade, I have tried every task management apps imaginable. I finally realized that the only way I would ever find my perfect productivity ...
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49 views

How to catch exceptions in test code?(Python 3.8) [closed]

I have a script that includes some independent tests that run together (not parallelly). The tests include calls for some libraries that might raise exceptions (which indicate of a failure in the test)...
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1answer
157 views

.htaccess Recommendations

I have a personal website that's used primarily for fun. I upload images, videos and text that I want to share. An HTML submission form accepts questions and string submissions from users, which uses ...
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2answers
160 views

Mysql PDO Wrapper that throws Unique Constraint Exception

The main reasoning behind this PDO wrapper, is that I find myself using unique constraints quite frequently in my designs, and I have ...
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1answer
103 views

A method that calls multiple async tasks with error handling, done the right way?

I've got a method, CheckForValue(), that uses named pipes to send a message to another process running locally, and then receive a message from that process, ...
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1answer
102 views

Proper Error handling when we expect results from secondary functions

I'm building an android application and I have some second thoughts on some error handling case. I have a method that gets data from the internet by calling this method: ...
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1answer
146 views

VBA Error Handling Sub, Working for all subs

The idea is to make an error handling procedure, which prints messages in DEV mode and shows MsgBox in ...
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110 views

Custom MediaController with full screen video image option

I have overridden setAnchorView() of MediaController class to display full screen option icon using below code.The code seems to be working fine in devices I tested but I have few doubts for which I ...
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58 views

Oauth2 Connector Frappe Framework

My first attempt at writing a Python application to solve a real problem is a one way connector between ERPNext and MYOB AccountRight. This is the module I have written to connect to the API and get ...
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1answer
517 views

How can I make my error handling more idiomatic in Rustlings exercise "from_into"?

I've got a working solution to the Rustlings from_into exercise (i.e. the code compiles and all the tests pass). The task required that I implemented the From trait ...
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1answer
200 views

Handling errors in potentially incomplete responses

I am using the library geoip2 to get Geolocation of many IP adderesses ...
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1answer
72 views

Sending a CSV file for a client list from a database

What can I improve about this code in order to be production-ready? I'm not worried about security but about errors that could occur. What exceptions should I catch? I feel overwhelmed about ...
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2answers
1k views

A simple error messaging and logging system via macro(s) in C++

I'm just trying to build a quick and crude error messaging system. It currently looks like this: ...
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1answer
162 views

Part 2: Send HTTP request for each row in Excel table

This script was previously reviewed here: Send HTTP request for each row in Excel table (Part 1) I've made the changes that were suggested in the Code Review answers as well as added a few of my own. ...
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1answer
302 views

C# Reflection-based CSV Parser

I've been trying to make a C# version of my Java CSV Parser using C# specific idioms. Here is the full code: ...
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2answers
130 views

Tic-Tac-Toe in Java

I am currently learning Java; I could really use some help from more experienced programmers. How can I clean up my Tic-Tac-Toe code? What mistakes have I made? Can I use more exception handling? I ...

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