Questions tagged [warnings]
The warnings tag has no usage guidance.
16
questions
3
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6
answers
441
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Waiting until end of project to remove commented out code, remove unused code, and resolve compiler warnings
A co-worker of mine is working on project solo but would still like to have other team members review their code upon reaching certain milestones. Unfortunately, they also want to wait until the end ...
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votes
1
answer
909
views
When to use using #pragma warning disable
Is there a general rule about disabling warnings in your code?
In my particular case, an unreachable code warning was issued because of an if statement testing a constant value, where it could be ...
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-4
votes
1
answer
438
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Is it really good idea to disable warning of C or Cpp? [duplicate]
When we are working on a big project of C or CPP, we are getting some warning. Therefore, we try to remove that warning because when we see compiler warnings that they make us feel dirty. When we ...
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3
votes
1
answer
173
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Are there any standards for labelling stdout/stderr messages?
I'm making a console application, and over time I have been developing my own tools and practices for outputting text; a process that keeps evolving.
For example, these days I have 4 main types of ...
- 3,575
2
votes
1
answer
69
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Capturing warnings when batch processing is ignored
My client has a process which iterates over a number of actions that may or may not apply to a users portfolio. Quite frequently, processing of an action may give up and jump to the next action or ...
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17
votes
7
answers
25k
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Why unused variables is such an issue?
I was cleaning unused variables warnings one day, and I started to ponder, what exactly is the problem about them?
In fact, some of them even help in debugging (e.g. inspect exception details, or ...
- 297
5
votes
4
answers
4k
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Is a compiler warning for 64bit to 32bit `size_t` truncation actually useful?
I have been looking at VC++'s C4267:
Compiler Warning (level 3) C4267
'var' : conversion from 'size_t' to 'type', possible loss of data
The compiler detected a conversion from size_t to a ...
- 7,588
1
vote
2
answers
5k
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Example of problem caused by casting Object[] to E[]
I've heard here and there that arrays contain runtime data about their type, making you unable to instantiate an E[] (E being a generic type parameter, for example in a class Foo<E>), and that ...
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13
votes
3
answers
27k
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Is it a good practice to use suppress warnings in your code?
I use @SuppressWarnings("unchecked") and @SuppressWarnings("null") mostly above methods to let the code compile without any warnings but I have my doubts. Found this Stackoverflow question. Jon Skeet ...
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21
votes
3
answers
7k
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Is it good practice to avoid warnings and notices?
I've generally been working with PHP warnings and notices off, since I work on a lot of projects where it's already in live production. Now, if I turn on the warnings and notices on these live ...
- 379
1
vote
2
answers
10k
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Why am I getting field visibility warnings in Sonar?
Some static analysis tools flag non-private fields with
Variable '[nameHere]' must be private and have accessor methods.
Sonar consistently presents such warnings and wants to change all protected ...
- 113
3
votes
2
answers
5k
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Is it a good practice to choose the highest warning level in C++ programming? [closed]
I used to select the default warning level in C++ programming. For example, in VS, the default warning level is Level3 (/W3) and No (/WX-) (don't treat warnings as errors).
I am wondering is it a ...
- 141
1
vote
2
answers
166
views
How much warnings in C to enable?
This is a tiny project of about 2000LOC. It is being compiled with -Wall. Now, I tried adding -Wextra. Two things happened:
Some minor but valid warnings popped up, e.g. Comparing signed with ...
- 7,093
4
votes
2
answers
491
views
Handling compiler bugs in Continuous Integration
I believe that warnings should be treated as errors. If you start ignoring warnings you'll start missing "important" warnings among the "unimportant" ones. So my Continuous Integration system fails a ...
- 6,470
9
votes
5
answers
920
views
How to deal with warnings in a legacy project
I work on a C++ project that generates bajillions of warnings. Most of the warnings appeared after the code was written:
Initially the project used Visual C++ 8, soon switching to 9, but there is ...
- 18.3k
29
votes
9
answers
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Why should one want to disable compiler warnings?
This answer and the comments added to it show a way to disable several compiler warnings using #pragma directives.
Why would one want to do that? Usually the warnings are there for a reason, and I've ...
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