STL containers element destruction order
Unspecified in the standard. Yes, but this means that the key is destroyed after its associated value.
portability
How do I detect if I’m running MATLAB or Octave?
You could use the following test to differentiate Octave from MATLAB: isOctave = exist(‘OCTAVE_VERSION’, ‘builtin’) ~= 0;
Does “volatile” guarantee anything at all in portable C code for multi-core systems?
I’m no expert, but cppreference.com has what appears to me to be some pretty good information on volatile. Here’s the gist of it: Every access (both read and write) made through an lvalue expression of volatile-qualified type is considered an observable side effect for the purpose of optimization and is evaluated strictly according to the … Read more
How to convert a simple .Net console project a into portable exe with Mono and mkbundle?
I have found a simple how-to here, however, as I have not tested it myself, I cannot guarantee results. As usual YMMV. Quote from the original article (please follow the thread on the original article as well though): Mkbundle: bundle Mono with your applications Did you ever wonder why you need .NET Framework or Mono … Read more
How to write portable code in c++?
learn to use the standard library read books (eg. this one) when you’re experienced, learn to use boost
Portable way of setting std::thread priority in C++11
There’s no way to set thread priorities via the C++11 library. I don’t think this is going to change in C++14, and my crystal ball is too hazy to comment on versions after that. In POSIX, pthread_setschedparam(thread.native_handle(), policy, {priority}); In Win32 BOOL SetThreadPriority(HANDLE hThread,int nPriority)
Is there a portable equivalent to DebugBreak()/__debugbreak?
A method that is portable to most POSIX systems is: raise(SIGTRAP);
How can I mark a C++ class method as deprecated?
In C++14, you can mark a function as deprecated using the [[deprecated]] attribute (see section 7.6.5 [dcl.attr.deprecated]). The attribute-token deprecated can be used to mark names and entities whose use is still allowed, but is discouraged for some reason. For example, the following function foo is deprecated: [[deprecated]] void foo(int); It is possible to provide … Read more
What is the smallest possible Windows (PE) executable?
As quoted from source (Creating the smallest possible PE executable): 1 Smallest possible PE file: 97 bytes Smallest possible PE file on Windows 2000: 133 bytes Smallest PE file that downloads a file over WebDAV and executes it: 133 bytes The files above are the smallest possible PE files due to requirements of the PE … Read more
Portability of #warning preprocessor directive
It should be noted that MSVC uses the syntax: #pragma message ( “your warning text here” ) The usual #warning syntax generates a fatal error C1021: invalid preprocessor command ‘warning’ so it is not portable to those compilers.