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.. _binary-literals:
Binary integer literals
-----------------------
.. extension:: BinaryLiterals
:shortdesc: Enable support for binary literals.
:since: 7.10.1
Allow the use of binary notation in integer literals.
Haskell 2010 and Haskell 98 allows for integer literals to be given in
decimal, octal (prefixed by ``0o`` or ``0O``), or hexadecimal notation
(prefixed by ``0x`` or ``0X``).
The language extension :extension:`BinaryLiterals` adds support for expressing
integer literals in binary notation with the prefix ``0b`` or ``0B``. For
instance, the binary integer literal ``0b11001001`` will be desugared into
``fromInteger 201`` when :extension:`BinaryLiterals` is enabled.
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