Questions tagged [g++]
g++ is the C++ frontend to the GNU Compiler Collection (GCC). It's the de facto standard compiler for C, C++, Go, Fortran, and Ada on Linux and supports many other languages and platforms as well. Apart from the compiler, GCC has a toolchain (libc, libstdc++, objdump, nm etc.) that is widely used on several platforms and systems.
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vs code wont run with multiple cpp files [duplicate]
hello i am a beginner and currently following learncpp 2.8 on how to use multiple code files which i was able to build and run manually but build and fail to run in vs code despite setting tasks.json ...
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When writing my own lex/yacc, my code that was cpmpiled by g++ producted a weird bug
Could you please help me identify where the issue might be in my code, or is there possibly a problem with the compiler itself?"
I was writing my own lex/yacc by cpp. There is some codes for ...
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Undefined reference to `??3@YAXPEAX@Z' [duplicate]
I tried to Link my c++ programm with the Rockey library (Rockey is a company that produces usb hardware keys) but during compilation I get the following error [R4ND_Random]+0x12f): undefined reference ...
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Valgrind complain after modifing reference return variable from a vector in c++
I am trying to modify an std::vector through the use of references, the vector lifetime is designed in such a way modifications through the reference always are valid, in other words the the reference'...
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clang++ and g++ Compiler gives different output when printing char pointer [duplicate]
clang++ and g++ Compiler gives different output when printing char pointer
#include <iostream>
int
main(int argc, char** argv){
char a = 'a';
char* aptr = &a;
std::cout << aptr &...
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G++ cannot link to instantiated template static method in shared library [duplicate]
I have a simple code that's trying to link to a static method of a class template that's already instantiated in a shared library. This is the code:
#include <sym/rot3.h>
int main() {
sym::...
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g++-9 uses newer GLIBCXX symbols when linking against libstdc++
I am facing issues with g++ linking against newer GLIBCXX symbols for std::condition_variable::wait (with g++-9/g++-10/g++-11, libstdc++.so.6.0.30):
When using std::condition_variable::wait, GLIBCXX_3....
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How to include opencv headers without using cmake?
I installed the opencv library by using apt:
sudo apt install libopencv-dev libopencv-contrib-dev
But how to involve the installed library into my own project without using cmake? I tried directly ...
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How to get g++ to find .so files?
Seemingly as simple as can be: I want to link a shared object file and use a function from it. However, I can't even get this to work in the following simple use case:
In the directory /my_proj I have ...
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how to compile a c++ file that uses wxWidgets using Mingw(gcc/g++) or using a makefile
i can compile c++ file using visual studio, but i wanna compile it using Mingw(gcc / g++).
Note: i don't know much about wxWidgets
when i run gcc main.cpp -I C:\wxWidgets-3.2.5\include\msvc -I C:\...
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g++ -g debug symbols don't include filename
I've been trying to get lldb working recently and I ran across the issue of breakpoints not being able to find files. So I did a small test, wrote an empty main function and compiled it with MinGW g++ ...
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1
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Unable to build app using vcpkg and Ninja
I am creating a simple test c++ application which is using spdlog for logging.
I am using vcpkg as package manager and Ninja as generator and cmake.
My package is installed successfully inside my ...
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1
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Memory error when running multiset.erase(std::prev(multiset.end()));
#include <iostream>
#include <set>
#include <iterator>
using std::cout, std::endl;
using std::multiset;
int main() {
multiset<int> m;
m.insert(1);
m.insert(2);
...
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std::string issue for system clang++ vs Homebrew g++ on Macos arm64
I'm using a library, compiled with the system clang++ ("Apple clang version 15.0.0; Target: arm64-apple-darwin23.5.0); the library's installed with Homebrew.
I then compile a program using that ...
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1
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Arithmetic error caused by -O3 option on g++ [duplicate]
I have the following (very simple) code:
#include <cstdint>
#include <iostream>
#include <vector>
int main(void)
{
std::vector<int64_t> result;
int64_t seed = ...
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