#   This program is free software: you can redistribute it and/or modify
#   it under the terms of the GNU General Public License as published by
#   the Free Software Foundation, either version 3 of the License, or
#   (at your option) any later version.
#
#   This program is distributed in the hope that it will be useful,
#   but WITHOUT ANY WARRANTY; without even the implied warranty of
#   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#   GNU General Public License for more details.
#
#   You should have received a copy of the GNU General Public License
#   along with this program.  If not, see <http://www.gnu.org/licenses/>.
#
echo_argc()
{
	echo $#
}

a()
{
	shift
	echo_argc "$@"
	echo_argc ${1:+"$@"}
	echo_argc "${1:+$@}"
	echo_argc 1 2 3
}

b()
{
	_IFS="$IFS"
	IFS="$1"
	shift
	echo_argc "$@"
	echo_argc ${1:+"$@"}
	echo_argc "${1:+$@}"
	echo_argc 1 2 3
	IFS="$_IFS"
}

a "X" foo bar hoge

b "X" foo bar hoge