Is there a way to have my program check to see if another program is already accessing or attempting to access hardware, such as a webcam? A web search doesn't yield any results for this and I'm not even sure if FreeBSD has a way to check for this type of thing.
Assuming that we all know and love C++ (I rarely use it myself), the standards of C++11, C++14, and C++17 all add new features of...dubious...quality and usefulness. Now, C++20 is being drafted. However, Bjarne Stroustrup is firing warning shots about the **43** new features being proposed for...
I bought a copy of Struostrups ‘Principles and practice of C++’. I started working through it but stopped studying due to other commitments.
Anyway now I plan to continue working through the book. I guess that FreeBSD has improved a lot over the last 6 months or so. I’m planning on...
I'm working on a tool that checks the version of the compiler, to be more precise c++. This tool is multi platform and works on Linux also. The questions is that in general gcc have a parameter call -dumpversion that shows the version of the compiler and on freebsd12 and freebsd12 do...
I think I messed up libc++. I was trying to get something to compile, and I think I pkg remove -f'ed devel/llvm39 and reinstalled it. Now when I try and compile anything in C++ I get an error like the following:
/usr/include/c++/v1/cmath:679:46: error: declaration conflicts with target of...
I'm trying to switch from Linux to FreeBSD, but am unable to compile one of our custom software.
After compiling many files, it eventually halts when trying to compile a file containing some pthread code:
Building file: ../feedProcessor.cpp
Invoking: GCC C++ Compiler
Hello, I was testing one of my software on FreeBSD ,Where in the software i've been trying to replace the Real/Effective UID and GID of the process using below two functions
setregid(),setreuid(). But these both functions return -1 as a result(when i got the errno to print it ssys "operations...
So, I'm writing a little database server/manager (I know, don't reinvent the wheel, but is a research project and I got a good idea, innovative, I hope) and from the beginning I thought to write it in Java, but after some researching about "performance and memory issues" I'm not...
I'm working on porting a C++ application to FreeBSD. It's compiling, but a call to dlopen() is failing. Here's a code snippet.
static void *lib=NULL;
const char* blah;
cout << blah << "\n";
The output is...
FreeBSD vm-freebsd 10.2-RELEASE-p7 FreeBSD 10.2-RELEASE-p7 #0: Mon Nov 2 14:19:39 UTC 2015 email@example.com:/usr/obj/usr/src/sys/GENERIC amd64
% cmake --version
cmake version 3.4.1
CMake suite maintained and supported by Kitware (kitware.com/cmake)...