ext/preprocessor/seq/head.bi

This file is part of the <ext/Preprocessor> library API, and can be directly included by user programs.

Summary
ext/preprocessor/seq/head.biThis file is part of the <ext/Preprocessor> library API, and can be directly included by user programs.
LicenseCopyright © 2007-2011, FreeBASIC Extended Library Development Group Copyright © 2002, Paul Mensonides
Macros
fbextPP_SeqHeadReturns the first element in a sequence.

License

Copyright © 2007-2011, FreeBASIC Extended Library Development Group Copyright © 2002, Paul Mensonides

Distributed under the Boost Software License, Version 1.0.  See accompanying file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)

Distributed under the FreeBASIC Extended Library Group license.  See accompanying file LICENSE.txt or copy at http://code.google.com/p/fb-extended-lib/wiki/License

Macros

fbextPP_SeqHead

# define fbextPP_SeqHead(
   seq
) FBEXT_PP_CAT(fbextPP_SeqHead__F, FBEXT_PP_CAT(fbextPP_TupleElem__2__0, FBEXT_PP_SEQ_SPLIT(1, seq(__))))

Returns the first element in a sequence.

Parameters

seqA sequence.

Returns

The first element in the sequence.

Description

Given a sequence (a)(b)(c)(d), this macro will expand to a.

# define fbextPP_SeqHead(
   seq
) FBEXT_PP_CAT(fbextPP_SeqHead__F, FBEXT_PP_CAT(fbextPP_TupleElem__2__0, FBEXT_PP_SEQ_SPLIT(1, seq(__))))
Returns the first element in a sequence.