Is hash_map part of the STL?

Question

Quick question...Is hash_map part of the STL?

Answer 1

Quoting Wikipedia (emphasis added):

From the STL page:

The Standard Template Library (STL) is a software library partially included in the C++ Standard Library.

...and then from the hash_map page

In the C++ programming language, hash_map is the name of a hashed associative container in the Standard Template Library. It is provided by several implementors, such as the GNU C++ compiler and Microsoft's Visual C++. It is not part of the C++ Standard Library, but the C++ Technical Report 1 contains the very similar container unordered_map, which will be included in the upcoming C++0x standard.

So in short,

• YES it's part of the STL.
• But it IS NOT part of the standard library.
• But it is supported by several very popular implementations.