Where are C++ libraries held on WIndows 10?

Question

I mean "the directory where system header files are held", where is it?

Answer 1

The C++ standard library (not the Standard template library (STL)), comes with your c++ compiler implementation (and optionally packaged with the IDE).

You have to differentiate IDE and compiler toolchain. Then it can can be configured to use a number of different compiler toolchains (e.g. MSVC).

So in short- It's the Minimalist GNU toolchain for Windows. It usually comes along with the GCC (GNU C/C++ compiler toolchain), plus the MSYS minimalist GNU tools environment (including GNU make, shell, etc.).

Reference-

https://stackoverflow.com/questions/28797261/where-is-the-standard-library

Answer 2

Which compiler do you use ?
If it's MinGW then you can look for it in its directory 👇

C:\MinGW\lib\gcc\mingw32\4.8.1\include\c++

P.S. got this from EnCoDeR 's link