For questions about (suspected) incorrect behavior of a compiler. Use with the appropriate language tag and, where applicable, with the tag for the compiler in question.
Questions tagged [compiler-bug]
309 questions
0
votes
1 answer
gcc/g++ internal error (c++ templated lambda)
i was just making a few changes to my program, when all of a sudden g++ complained with an internal compiler error.
Clang however compiles it without any problems and also does not give any warnings, that would indicate anything weird.
I distilled…
Lazarus535
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0
votes
2 answers
C++ comparison operator not returning true or false
I have following program
int a = 216;
bool* v = (bool*)((void*)&a);
std::cout << (*v == true) << endl;
I would expect this program to print out true or false but instead it prints out 216. I have compiled it with g++ (Ubuntu 4.8.2-19ubuntu1) 4.8.2.…
Trismegistos
- 3,821
- 2
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- 41
0
votes
1 answer
Compiler warning when passing NSError ** as a method parameter
I've been scratching my head about this for the last 4 hours, trying out all kinds of little experiments, but I can't seem to figure out what's going wrong. Could this be a compiler bug?
Test.m:
- (id)initWithContentsOfURL:(NSURL *)aURL…
splicer
- 5,344
- 4
- 42
- 47
0
votes
1 answer
G++ error while playing with variadic templates
//class we're trying to generate
template
class A
{
public:
A()
{
std::cout << a << "," << (int)b << std::endl;
}
};
//class which generates information
template
struct B
{
typedef T value_type;
static…
IdeaHat
- 7,641
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- 53
0
votes
0 answers
Did I find a Scala compiler bug?
In Scala 2.9.1, this does not compile, failing with not found: value b:
case class CaseClass(field: String)
object SomeObject {
//val kludge = field
def x(input: (CaseClass, String) => CaseClass): Unit = ()
val field = x((a, b) =>…
Mark
- 5,286
- 5
- 42
- 73
-1
votes
1 answer
Getting "instantiation resulted in unexecpted type" with MSVC
In a library of mine, I have the following bit of code (snipped for brevity):
namespace memory {
namespace managed {
namespace detail {
template
inline T get_scalar_range_attribute(
region_t region,
cudaMemRangeAttribute…
einpoklum
- 118,144
- 57
- 340
- 684
-2
votes
1 answer
variable initialized wrong
i got a very strange problem with a variable that has name 'val'. I will try my best to explain it. I cannot make any small code example that do the same issue and my project is very big so can't upload it here also.
The code i try is (part of…
mod Zz
- 49
- 6
-2
votes
1 answer
How is this Intel Xeon mov instruction corrupting my application's memory?
I have an application built with gcc v7.3.0 and executing on an Intel(R) Xeon(R) CPU E3-1220 v6 chip that corrupts stack memory deterministically and gets a SEGV due to executing a mov instruction. I ran valgrind and no memory corruption was…
WilliamKF
- 41,123
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- 295
-2
votes
1 answer
Possible Visual Studio 2015 C++ Compiler and IntelliSense Bugs
I encountered a compiler crash and intellisense false positives with Visual Studio 2015 using C++.
This crashes the compiler when written within a function block:
if();
This is the dialog that is shown when compiling (I am on a German version of…
Beta Carotin
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