Version 6.x of the GNU Compiler Collection.
Version 6.1 was released on 2016-04-27. Version 6.5. was released on 2018-10-26.
See also:
Questions tagged [gcc6]
52 questions
1
vote
0 answers
XCODE GCC6 Compatibility
I downloaded the latest version of GCC (6.2.0) using homebrew. It works great from the command line (you have to make sure you really use it and not the g++ override that XCODE does)
If I try to tell XCODE to use this version of GCC as the compiler,…
Carmine T. Guida
- 21
- 5
1
vote
2 answers
C code that uses blas, lapack and openmp working with gcc 4.9 but gives run time error with gcc 6
I have written a code in C.
You can find the source code here.
It makes use of the libraries blas, lapack and openmp.
I have compiled the blas and lapack libraries following these instrucions.
I use these flags to tell the compiler the libraries…
Rob
- 1,080
- 2
- 10
- 24
1
vote
3 answers
gcc 6.1.0 segmentation fault - gcc bug?
Let's consider follwing code. In fact this is narrowed problem I found using gmock and mocking void(void) method.
class Base {
public:
virtual ~Base() {}
};
class Derived : public Base
{
public:
void GetValueAndDelete() { delete this; }…
Kamil_H
- 501
- 1
- 5
- 12
0
votes
0 answers
GCC9 compiler slower than GCC6? What is possible solution for the same?
GCC9 compiler slower than GCC6?
What is possible solution for the same?
Normally it was taking 5 minutes for compilation but now after upgrading to GCC9 it's taking 20 minutes for compilation.
Can anyone suggest the soultion?
krishma_thakral
- 21
- 1
- 6
0
votes
1 answer
Why does using "constexpr" give primary expression error in codeblocks
I am getting expected primary expression before constexpr in codeblocks only. Is there a way to fix this? This is the code I am trying to test. I have set c++ 17 as the compiler. I am using GNU GCC Compiler. GCC (MinGW.org GCC-6.3.0-1) 6.3.0. I am…
Ghost001
- 43
- 7
0
votes
0 answers
Error while upgrading Ubuntu from 16.04 to 18.04, GCC-6-base
I'm trying to upgrade my Ubuntu from 16.04 to 18.04, while doing
sudo apt update
&
sudo apt upgrade
and keep getting
The following packages have been kept back: GCC-6-base
I tried to install, upgrade and remove this package but keep getting
The…
0
votes
1 answer
Wrong result for atan2 with glibc / libm and float32
I am currently developing the firmware for a medical device where a lot of difficult mathematical operations is involved. The target processor supports floating point operation in hardware, but only float32 (aka single).
To simulate the behavior and…
Binarus
- 4,005
- 3
- 25
- 41
0
votes
2 answers
error using static method in lambda
I have a static method my_method_1() in my_class, and I am trying to use it in a lambda:
static void my_method_1(el);
void my_class::my_method_2()
{
std::for_each(my_list_.begin(), my_list_.end(),
[](auto& element)
{
…
AlexM
- 111
- 4
0
votes
1 answer
Upgrade from gcc 5.4 to gcc 6.3 std::thread std:ref issue
I recently upgraded to gcc 6.3 from gcc 5.4. C++ code that used to compile and run just fine stopped compiling and I'm not experienced enough to deduce what is going wrong.
The code is in an object that I created to spawn windows using sfml. It…
Raydude
- 199
- 2
- 8
0
votes
1 answer
Unable to compile with gsl on Mac
I am trying to implement gsl_rng.h on a Montecarlo simulation on my MacBook Pro (13-inch, Mid 2012). The simulation is all written in C. My problem is that gcc-6 complains it cannot find the gsl library despite the compilation flags which I think…
Maganna Dev
- 189
- 1
- 11
0
votes
1 answer
How to install gcc 6.4.0 on Cygwin
I have installed cygwin then I ran setup-x86_64.exe -q -P wget -P gcc-g++ and that installed gcc 5.4.0
But how can I install gcc 6.4.0 on cygwin?
FFMG
- 1,208
- 1
- 10
- 24
0
votes
3 answers
gcc -fPIC -fPIE: difference betweenn gcc-4 and gcc-6
Preamble: this question is not about Oracle, instead I'd like to understand the fundamental difference between gcc-4 and gcc-6 in the handling of Position Independent Code.
So I have decided to try an Oracle 12c installation on a Debian…
broeni
- 97
- 1
- 8
0
votes
0 answers
error: reinterpret_cast from integer to pointer
The following code fails to compile with GCC 6 and 32bit-mode (on a amd64 host).
class foo {
static constexpr const char* ptr = reinterpret_cast(0xff);
};
int main() {
return 0;
}
Compilation command:
g++ -m32 test.cc
Error…
gerion
- 345
- 2
- 9
0
votes
0 answers
Doxygen 1.8.11 build fails with gcc620
I have seen all the required packages and their versions for doxygen , but building with gcc620 fails with this error:
[ 26%] [BISON][constexp] Building parser with bison 3.0.4
cd…
Ijaz Ahmad
- 11,198
- 9
- 53
- 73
0
votes
2 answers
atomic load/save on c struct (gcc) questions
trying my luck in making lock-free singly linked list implementation.
typedef _Atomic struct _node
{
void *data;
struct _node *next;
} Node;
does this make all members of struct with _Atomic atomic as well?
void add_head ( Linked_list*…
nkvnkv
- 914
- 2
- 12
- 25