# Identifiers

[identifiers]

This section describes the identifier conventions used by oneTBB.

## Case

The identifier convention in the library follows the style of the ISO C++ standard library. Identifiers are written in underscore_style, and concepts - in PascalCase.

## Reserved Identifier Prefixes

The library reserves the `__TBB` prefix for internal identifiers and macros that should never be directly referenced by your code.