Can undefined behavior that is explicitly specified occur in a consteval function without a diagnost...

p1 and p2 are pointers to ints, if p2>p1 is valid, is p2-p1 valid?...

Why is a private member visible when initializing a static variable?...

What type can the result of calloc be assigned to, a pointer to an array, a pointer to the type cont...

Is there a data race between writes that nominally happen under mutually exclusive conditions?...

Can dynamic_cast<Derived*>(static_cast<Base*>(voidPtr)) ever go wrong if voidPtr is null...

Declaration can not happen inside a conditional operator expression?...

Does the JS engine create a new microtask that will execute every handler chained together in a Prom...

Can friend comparison operator be defined for a local class?...

Can "an implicitly-defined move constructor" be NOT trivial?...

What does the term "trivial" formally mean in C++?...

What is the behavior of printing NULL with printf's %s specifier?...

Do preprocessor defines substitute in `operator""_name`...

Inconsistent behavior of std::common_reference_with on tuples. Which is correct?...

Does nullptr_t break type punning or pointer conversions?...

Does the definition int a = 0, b = a++, c = a++; have defined behavior in C?...

Is support of Annex K in C11 required for a conforming implementation?...

Is dereference null pointer UB in C++20?...

Why C++ variable template does not raise multiple definitions error?...

Is there an equivalent of __attribute__((nonnull)) in C23?...

In the C++ 20 specification, where is the rule saying an rvalue reference cannot bind to an lvalue?...

Why does scanf parse "2E" but not "." (with GCC) as a "prefix of a matching...

Why are function template specializations distinct, despite no difference in return type or paramete...

#if ! SOME_MACROS equivalent with #ifndef SOME_MACROS if SOME_MACROS always has numerical value...

What does std::numeric_limits do for types that don't specialize it?...

Are spaces mandatory when calling modify() on a DateTime or DateTimeImmutable object?...

Is `void foo(int a[static 0]);` valid?...

Why are curly braces {} NOT considered an operator in C++?...

Does the comma in a declaration for multiple objects introduce a sequence point like the comma opera...

Why are no diagnostics required for missing definitions?...