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Diffstat (limited to 'mcon/U/vaproto.U')
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diff --git a/mcon/U/vaproto.U b/mcon/U/vaproto.U new file mode 100644 index 0000000..8ae9674 --- /dev/null +++ b/mcon/U/vaproto.U @@ -0,0 +1,65 @@ +?RCS: $Id$ +?RCS: +?RCS: Copyright (c) 1991-1997, 2004-2006, Raphael Manfredi +?RCS: +?RCS: You may redistribute only under the terms of the Artistic Licence, +?RCS: as specified in the README file that comes with the distribution. +?RCS: You may reuse parts of this distribution only within the terms of +?RCS: that same Artistic Licence; a copy of which may be found at the root +?RCS: of the source tree for dist 4.0. +?RCS: +?RCS: Orginal Author: Graham Stoney <greyham@research.canon.oz.au> +?RCS: +?RCS: $Log: vaproto.U,v $ +?RCS: Revision 3.0.1.1 1994/01/24 14:17:16 ram +?RCS: patch16: definition of _V now appears only when needed +?RCS: +?RCS: Revision 3.0 1993/08/18 12:09:59 ram +?RCS: Baseline for dist 3.0 netwide release. +?RCS: +?MAKE:vaproto: prototype i_stdarg Setvar +?MAKE: -pick add $@ %< +?S:vaproto: +?S: This variable conditionally defines CAN_VAPROTO on systems supporting +?S: prototype declaration of functions with a variable number of +?S: arguments. See also prototype. +?S:. +?C:CAN_VAPROTO ~ %<: +?C: This variable is defined on systems supporting prototype declaration +?C: of functions with a variable number of arguments. +?C:. +?C:_V: +?C: This macro is used to declare function parameters in prototypes for +?C: functions with a variable number of parameters. Use double parentheses. +?C: For example: +?C: +?C: int printf _V((char *fmt, ...)); +?C: +?C: Remember to use the plain simple _() macro when declaring a function +?C: with no variable number of arguments, since it might be possible to +?C: have a non-effect _V() macro and still get prototypes via _(). +?C:. +?H:?%<:#$vaproto CAN_VAPROTO /**/ +?H:?_V:#ifdef CAN_VAPROTO +?H:?_V:#define _V(args) args +?H:?_V:#else +?H:?_V:#define _V(args) () +?H:?_V:#endif +?H:. +?W:%<:_V +?LINT:set vaproto +: see if prototypes support variable argument declarations +echo " " +case "$prototype$i_stdarg" in +$define$define) + echo "It appears we'll be able to prototype varargs functions." >&4 + val="$define" + ;; +*) + echo "Too bad... We won't be using prototyped varargs functions..." >&4 + val="$undef" + ;; +esac +set vaproto +eval $setvar + |