In order to use the C++17 include <filesystem> I need gcc-9 package in my debian docker. By default debian:latest (aka 10 or buster) will install gcc 8.3.0 from the regular distro repo. Is there any PPA, testing repo, whatever, where…
I think I need to paste the full code although it looks long. I write a simple code for test. #include <stdio.h> int funadd(int a, int b){ int x = 0; x = a + b; return x; } int…
I am running Kali-Linux (debian+gnome). When I compile I get compilation error: cc -Wall -g -c -o frag.o frag.c frag.c:7:10: fatal error: stropts.h: No such file or directory 7 | #include <stropts.h> | ^~~~~~~~~~~ compilation terminated. make: *** [<builtin>: frag.o]…
I've been struggling with this for the past 2h. In CentOS 8 I can't find the devtoolset packages to install older gcc/g++ versions. There is no longer a scl repo for CentOS 8. I need gcc/g++ 4.9x installed along the…
I am trying to execute a binary executable file inside C code without using system since it has security and resource management issues. The system used here is Debian Buster with kernel 5.4.0-2-amd64 and gcc 9.2.1. I used the method…
If I try to instantiate a large two-dimensional std::array on our Centos 7.6 system, compiled with g++ 7.3.1, I get a segmentation fault: int main() { const unsigned NUM_BUFFERS = 200; const unsigned BUFFER_SIZE_BYTES = 1024 * 1024; std::array<std::array<unsigned char,…
I just noticed that I am unable to have a function return a struct. I am running this on ARM32/debian docker image with threads enabled. This is the function that gives me the run time error: struct CEC_call des_CEC_call(char *…
So I am trying to compile ,link and run a program without the main function.This is the code: #include <stdio.h> #include <stdlib.h> int my_main() { printf("Hello world!n"); return 0; } void _start() { exit(my_main()); } Tried to compile with the…
I was studying re-entrancy in programming. On this site of IBM (really good one). I have founded a code, copied below. It's the first code that comes rolling down the website. The code tries showing the issues involving shared access…
I have a project (code here) in which I run benchmarks to compare the performance of different methods for computing dot product (Naive method, Eigen library, SIMD implementation, ect). I am testing on a fresh Centos 7.6 VM. I have…