The MSVC compiler toolset in Visual Studio version 15.7 conforms with the C++ Standard:

Announcing: MSVC Conforms to the C++ Standard

by Bat-Ulzii Luvsanbat

From the article:

Achieving conformance with the C++ Standards has been a long road for the Visual C++ team. If you’ve seen us at any conferences lately, you’ve probably seen the MSVC Conformance slide..