[thirdparty/gcc.git] / gcc / doc / gcc / extensions-to-the-c-language-family / dollar-signs-in-identifier-names.rst

..
  Copyright 1988-2022 Free Software Foundation, Inc.
  This is part of the GCC manual.
  For copying conditions, see the copyright.rst file.

.. index:: $, dollar signs in identifier names, identifier names, dollar signs in

.. _dollar-signs:

Dollar Signs in Identifier Names
********************************

In GNU C, you may normally use dollar signs in identifier names.
This is because many traditional C implementations allow such identifiers.
However, dollar signs in identifiers are not supported on a few target
machines, typically because the target assembler does not allow them.
Commit	Line	Data
c63539ff ML	1	..
	2	Copyright 1988-2022 Free Software Foundation, Inc.
	3	This is part of the GCC manual.
	4	For copying conditions, see the copyright.rst file.
	5
	6	.. index:: $, dollar signs in identifier names, identifier names, dollar signs in
	7
	8	.. _dollar-signs:
	9
	10	Dollar Signs in Identifier Names
	11	********************************
	12
	13	In GNU C, you may normally use dollar signs in identifier names.
	14	This is because many traditional C implementations allow such identifiers.
	15	However, dollar signs in identifiers are not supported on a few target
3ed1b4ce	16	machines, typically because the target assembler does not allow them.