About a year or two ago I read about SFINAE rules in C++. They state, in particular, The following type errors are SFINAE errors: ... attempting to create an array of void, array of reference, arr...

The following code can be compiled with gcc-13 and clang-16, but MSVC reports multiple errors using foo_type = void ((((int, const char*)))); // (1) // Compiler messages for line (1): // clang-16: ...

Here is the simple example: #include <type_traits> #include <ranges> #include <vector> struct MyClass { void f( int ) {} void f( char ) {} template <std::ranges::input_ran...

I want to split a string by a token with std::views::split, and for each retrieved substring invoke the std::from_chars function. Here is an MRE (https://godbolt.org/z/1K71qo9s4) that compiles succ...

I'm using the following program: In the main function, I want to print the address of the poll_timer function. The program compiles and runs successfully with clang but not with GCC. I get the foll...

I have the following code: #include <iostream> #include <vector> struct C { int a; C() : a(0) {} C(int a) : a(a) {} }; std::ostream &operator<<(std::ostream &os, con...

My scenario is the following (it worked in clang but not in gcc) liba.hpp: inline int MY_GLOBAL = 0; libother.cpp: (dll) #include "myliba.hpp" void myFunc() { // MYGLOBAL = 28; } someexe....

The TypeScript's docs comes with Compiler Options, where the --strictFunctionTypes is defined with its description. Unfortunately, can't get what is bivariant parameter. I tried to understand https...

I have the following piece of C++17 code that uses class template deduction: template <typename T> struct Test { T t; Test(T t) : t(t) {} bool check() { return true; } }; template ...

In section 20 of Scott Meyer's Effective C++, he states: some compilers refuse to put objects consisting of only a double into a register When passing built-in types by value, compilers will h...

My understanding is that in C++17, the following snippet is intended to Do The Right Thing: struct Instrument; // instrumented (non-trivial) move and copy operations struct Base { Instrument i; }...

From the the Haskell 98 report: There is no upper bound on the size of a tuple, but some Haskell implementations may restrict the size of tuples, and limit the instances associated with larger t...

How do I check for presence of individual C++0x/C++11 language features? I know Clang has a nice system for this. What about GCC, Visual Studio or Boost? I guess one way to do it is to detect the c...

Taken from http://www.ocf.berkeley.edu/~wwu/riddles/cs.shtml It looks very compiler specific to me. Don't know where to look for?

Or, are there any other known negative affects of employing __declspec(novtable)? I can't seem to find references to any issues.