Questions tagged [compiler-warnings]
Messages emitted by a compiler which indicate potential problems in code or configuration.
compiler-warnings
2,726
questions
-2
votes
1
answer
86
views
Warning to discover unnamed variable
Recently I've met a bug in C++ project related to an unnamed scope guard, like in this question:
LockGuard(mutex);
See simple demo.
This kind of bug is really hard to find by reviwing changes, and ...
- 2,511
0
votes
0
answers
12
views
Alternatives to self assignment for 'breakpoint code'
I recently tried to build a project with clang and clang++. Up to now it has only been built with GCC.
One of the problems that I saw was with code that is of the following form
if (expression)
{
...
- 6,357
1
vote
1
answer
31
views
Getting Warning BL0005 when modeling data for EditForm in Blazor
I am doing something like this in the Blazor HTML section...
<EditForm EditContext="editContext" OnValidSubmit="SubmitQuery">
<DataAnnotationsValidator />
<...
- 103
2
votes
2
answers
127
views
Understanding How the Compile Function Works in SBCL Common Lisp
I was hoping someone can explain why the compile function is not working as I would expect.
First question:
* (compile 'square (lambda (x) (* x x)))
SQUARE
NIL
NIL
But then:
* (square 3)
; in: SQUARE ...
- 1,909
3
votes
0
answers
62
views
signed overflow warning when extracting/inserting a timepoint from/to streams
When specifying the command line options -Wstrict-overflow=4 and -O3, extracting a timepoint (e.g. std::chrono::local_seconds) from a stream object triggers some warnings from GCC (v14.1). Inserting a ...
- 3,582
0
votes
0
answers
13
views
EventHandler NRT annotation not recognized in *.designer.cs
Since NRT annotations of System.EventHandler the sender has to be nullable.
If I define an event handler without correct sender declaration it will force an CS8622 error at event handler registration.
...
- 3,426
0
votes
1
answer
67
views
Misleading unreachable warning when a type pattern match that is the result of a inline expansion is involved?
The following method works fine when T and the types of all its components are specific types (contrary to abstract type parameters).
import scala.compiletime.*
private inline def loop[T <: Tuple, ...
- 1,216
0
votes
1
answer
72
views
Cannot assemble my code: waring: warning: relocation in read-only section `.text', warning: creating DT_TEXTREL in a PIE
I tried to replicate the assembly workspace that i have to study on my windows pc (where i have instruction to how installe and use wsl) on my linux pc but when i try to assemble by using
./assemble....
0
votes
0
answers
71
views
Can I ask GCC to give me a warning or error on empty structs?
I just had the worst problem ever in my mixed C/C++ project.
The C code is the production code, the C++ is the testing environment. We are compiling with MinGW GCC, but developing on Qt Creator which ...
- 1,163
1
vote
1
answer
113
views
Terraform Warning: Interpolation-only expressions are deprecated
I got this warning:
Warning: Interpolation-only expressions are deprecated
on best.tf line 69, in locals:
69: pools = length(var.instances) > 0 ? { "${var.name}" = var....
- 2,701
0
votes
0
answers
44
views
Windows CPP compiler ignore specific warnings and treat every warning as error
I am following this documentation
I want to treat all warnings as error and ignore these specific warnings but I get an error:
set _CL_="-WX -WD28020 -WD28112 -WD28132 -WD28159 -WD28182 -WD28195 -...
- 1,457
0
votes
0
answers
208
views
How does my system's GCC silence PSTL warnings?
When I compile even the simplest program using a C++ standard library algorithm execution policy, I get a page or two of warnings from include/c++/14.0.1/pstl/algorithm_impl.h - centred on the message ...
- 10.9k
1
vote
2
answers
132
views
Being inundated with macro redefinition from ntstatus.h
Despite having added the #define, I am still receiving the same bunch of warnings, twice (as many times the below header is #included) for a total of 100+ warnings:
#ifndef UMDF_USING_NTSTATUS
#define ...
- 33
1
vote
3
answers
94
views
GCC -Woverride-init warning with anonymous structs in a union
I need to define a type formed with 2 24-bit fields (48 bits in total). I didn't find a way to do it with bitfields in a struct. So I defined my type with a union and 2 anonymous structs :
typedef ...
- 11
3
votes
1
answer
122
views
Missing GCC "-Wformat" warnings for "%p" with char* etc
If I compile the following code with -std=c17 -Wall -Wextra -Wpedantic with GCC 13.2.0, I get no warnings, despite not using void* in arguments corresponding to "%p" format specifiers.
#...
- 9,955