I have a program compiled with gcc 11.2, which allocates some RAM memory first (8 GB) on heap (using new), and later fills it with data read out in real-time from an oscilloscope. uint32_t* buffer = new uint32_t[0x80000000]; for(uint64_t i…
Rocky Linux is a free distribution that repackages each release of RHEL (Red Hat Enterprise Linux). It is what CentOS used to be. On AWS there are Official releases of Rocky Linux 8 Green Obsidian (currently 8.6 = RHEL 8.6)…
This simple code can't be compiled with the -std=c++20 option: #include <limits> #include <boost/multiprecision/float128.hpp> namespace bm = boost::multiprecision; int main() { auto const m = std::numeric_limits<bm::float128>::max(); } The compilation command and its error output: hekto@ubuntu:~$ g++ -std=c++20 test.cpp In file…
I am trying to compile and run the example from https://docs.python.org/3/extending/embedding.html#very-high-level-embedding , but failed. My environment is Ubuntu 20.04.2 LTS, with system shipped python3.8(statically built), libpython3-dev and libpython3.8-dev packages installed. What I've tried: main.c : #define PY_SSIZE_T_CLEAN #include <Python.h> int…
I am currently building a docker image on top of gcc:11. All the (newer) tags are pushed to (relatively) frequently which becomes annoying when my image build suddenly starts from base. Some docker registries offer dated tags (like foo:3.0.1-20220714 for…
I am using Centos 7 with kernel 3.10.0 My current gcc version is 4.8.5 and I am trying to install gcc 7 or later versions. I have followed instructions from How to install GCC/G++ 8 on CentOS When I try…
I'm failing to link CppUnit (libcppunit.so) with GCC on Ubuntu/Linux. What am I doing wrong? For reproducibility, I used Docker as follows: docker run -it -w /opt/myproject --name cxx ubuntu:20.04 /bin/bash $ apt-get update && apt-get install -y build-essential libcppunit-dev…
The cpabe library, implemented in C, has two components, the cpabe main source and libbswabe library which acts as a dependency. Both of which can be found here The libbswabe library installed well enough, however, while making the cpabe source.…
Three environment, run the same code with wcsncmp in it, but the result is different. ENv 1 mac(arm): mingmingwanng@hostname TDengine % uname -a Darwin hostname 20.4.0 Darwin Kernel Version 20.4.0: Thu Apr 22 21:46:41 PDT 2021; root:xnu-7195.101.2~1/RELEASE_ARM64_T8101 arm64 mingmingwanng@hostname TDengine…
I recently upgraded my OS from Debian 9 to Debian 11. I have a bunch of servers running a simulation and one subset produces a certain result and another subset produces a different result. This did not used to happen…