bugs

C++ compiler bug report test programs

Viaual C++ 2022

Version 17.7.4

C++ RunTime library

• Extracting float from stringstream may give wrong result

Version 17.1.1 - FIXED in 17.2

Internal compiler error

• Using offsetof in template requires clause

Viaual C++ 2019

Version 16.10.4

Compile failure

• Unable to define member enum of template class outside of the class

Visual C++ 2017

Version 15.9.2

Bad warnings

• Warning converting from standard NAN macro to double

Version 15.7.4

C RunTime library

• Handle ownership conflict between FreeConsole and _close

Version 15.7.3

Compile failure

• Expression did not evaluate to a constant

Version 15.5.1

Bad code generation - FIXED in 15.7

• Release build generates code that tries to read an invalid memory address

Version 15.4.5

Internal compiler error - FIXED in 15.7

• Assigning constexpr duration from a constexpr duration defined in precompiled header

Intellisense error

• Intellisense errors defining and using forward declared member enum.

Version 15.3.2

Bad warnings

• c4102 "unreferenced label" when ref hidden by "if constexpr"

cppcheck 1.81

False positives

• Class 'classname' has a constructor with 1 argument that is not explicit.