Undefined class template is not instantiated to check for friend functions...

Cxx-prettyprint (for standard containers) defines its output operators inside namespace std - is thi...

Hidden friends: declarations and definitions...

Compile-time detection of missing user-defined to_string()...

Why ADL has a different behavior for operator function than other functions?...

ADL name lookup problem, is using std::swap; swap(a,b) related to function overloading or inner scop...

Does std::(customization point) invoke the most appropriate overload?...

Implementing member swap() in terms of non-member swap()...

Namespace resolution with operator== in the STL...

using std::swap disabled ADL...

Two-phase function template compilation: not *only* ADL is employed in the 2nd phase?...

Name lookup in template base: why do we add this->...

Argument-dependent lookup of dependent names...

Relationship between copy(...) and copy(seq, ...)...

ADL with std::function: Can functions taking std::function objects be found via the types in the std...

Getting constexpr functions resolved without creating parameter objects...

Why does ADL not work with an unnamed initializer_list?...

Where is this template function generated? Can compile by g++ but not in visual studio...

Should this function call be ambiguous?...

C++ ADL of a function in another namespace...

cannot access namespace scope friend explicitly...

How to fix previously-working injected template friend function?...

How to provide swap() for a class in the global namespace?...

How can I use ADL in template deduction?...

namespace in debug flags of in-class defined friend functions...

How to write a standard-like function that has high overload priority...

SFINAE-based Operator Overloading across Namespaces...

C++ operator lookup rules / Koenig lookup...

Why doesn't ADL find function templates?...

MSVC C++ ADL bug?...