All Questions
Tagged with error-handling c++
977
questions
0
votes
0
answers
45
views
What would be a better way to deal with a ifstreams failed state in this code?
I was reading Bjarne Stroustrup's "Principle and Practice using C++". Chapter 10.6 is about error handling of iostreams. He highlights that you should always try to recover from a fail() ...
- 353
-8
votes
1
answer
101
views
Have I missed something? [closed]
I'm just writing some quick number guessing game code, but I keep running into the "Expected Unqualified id" error.
I've checked all the semicolons, but maybe I've missed something?
Here's ...
1
vote
2
answers
81
views
C++ nullpointer dereference when adding instance to std::map within the constructor
I am trying to get an error-code list for my C++ application, so that errors are shared across multiple projects. Each error contains simply a unique code (to give to exit() and similars) and a ...
4
votes
0
answers
89
views
benchmarking exceptions vs error by value
I've decided to measure the performance difference between 2 approaches for handling errors:
return by value (sum of errors)
throw
I've written a simple benchmark for calculating a sum of a large ...
- 3,426
1
vote
1
answer
140
views
How to guarantee the existence of a std::chrono::tzdb at program startup?
Is there a way to determine whether or not a timezone database is initialized at the start of a program?
My aim is to not have a std::runtime_error thrown mid program because of a non-existent tzdb. I ...
- 3,582
0
votes
0
answers
67
views
Proper way of handling c++ library resource/context management
In the context of cpp-code interacting with a c libraries, I come across the following types of functions.
AcquireResource, ReleaseResource
GetList, SubmitList
open, close
Initialize, Finalize
Or in ...
- 397
0
votes
0
answers
38
views
Where in the source code is the class function, and how do I remedy the error message?
I'm trying to build a program from a source code. The following error message appears during the make step:
error: no 'bool CScript::IsPushOnly() const' member function declared in class 'CScript'.
...
-1
votes
2
answers
93
views
Boolean testing vs exception in stringstream [closed]
I want to short-circuit when an I/O operation on a std::istringstream/std::ostringstream fails, to avoid unnecessarily calling the rest of any chained <</>> operators on the already failed ...
- 3,582
0
votes
1
answer
44
views
Overloaded function not outputting correct answer
I am attempting to create an overloaded contructor that will take in integer and add them with the byteAdd function. However; whenever I compile the output is always the default constructor rather ...
0
votes
0
answers
44
views
No suitable conversion function [duplicate]
I am currently working on a menu that, when the user inputs the corresponding number, the menu will connect and use that function. These functions are arithmetic (add, subtract, multiply, and divide). ...
0
votes
1
answer
72
views
How to handle an error when loading a picture into a TImage component?
I am using a VCL TImage component to load a picture from a file in Embarcadero C++Builder 11.3.
"pic.bmp" is a valid picture:
Image1->Picture->LoadFromFile("C:\\SomePath\\pic.bmp&...
- 13
0
votes
0
answers
65
views
ERROR with "SFML/Graphics.hpp' file not found"
I ran into an error in X Code for the library when every I was using the #include SFML/Graphics.hpp however it said the file was not found enter image description here
I even imported the libraries ...
- 1
0
votes
2
answers
749
views
Warning of installing redistrubatble in Visual Studio 2015
I got a new computer and had to reinstall Visual Studio 2015 on it. Most of the time it went okay till the end. I got these warnings:
Microsoft Visual C++ 2015 Redistributable (x64) - 14.0.24210 :
...
- 147
2
votes
1
answer
327
views
How to ensure a string is a valid filename/path?
What is the most appropriate way of ensuring that a string (user input) is a valid text file path? And also the extension part should be either .txt or empty.
I have considered two approaches:
const ...
- 3,582
1
vote
0
answers
128
views
What Windows system error codes can GetCurrentDirectory() set, and how to interpret them?
I'm trying to implement error handlers for possible Windows system errors that the GetCurrentDirectory() function might set to the last-error code.
The documentation only says:
If the function fails, ...
- 710