Unknown (probably) simple problem with my code Post: 302563550

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Top Forums Shell Programming and Scripting Unknown (probably) simple problem with my code Post 302563550 by Sevchenko on Tuesday 11th of October 2011 01:36:15 PM

10-11-2011

Registered User

Unknown (probably) simple problem with my code

I'm relatively new to both UNIX and Linux and slightly less new at programming. But I can't figure out why this won't run properly.

It's meant to calculate the GCD of two numbers (simple enough, you'd think). And I designed it myself and it looks good to me and my instructor won't respond. If anyone could help me out, it would be appreciated.

#! /bin/bash

#Takes arguments to determin the GCD

errorNum="Too many or too few arguments passed."
errorUse="Usage: $0 [decimal] [decimal]"
errorNeg="Cannot use a negative number."

checkIfZero ()
{
if [ $a=0 ]
then
drop=1
elif [ $b=0 ]
then
drop=1
else
drop=0
fi
exit 0
}

if [ $1 < 1 -o $2 < 1 ]
then
echo $errorNeg
echo $errorUse
exit 0
fi

if [ $# -le 1 -o $# -gt 2 ]
then
echo $errorNum
echo $errorUse
exit 0
elif [ $1 -ge 0 ] && [ $2 -ge 0 ]
then
a=$1
b=$2
drop=0
while [ $a -gt 0 ] || [ $b -gt 0 ]
do
if [ $a -gt $b ]
then
if [ drop -gt 0 ]
then
checkIfZero
c=`expr $a % $b`
a=$c
fi
elif [ $b -gt $a ]
then
if [ drop -gt 0 ]
checkIfZero
c=`expr $b % $a`
b=$c
fi
fi
done

if [ $a -gt $b ]
then
echo "The GCD is $a."
else
echo "The GCD is $b."
fi
fi

Sevchenko

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xmdropsiteconfigurestackingorder

XmDropSiteConfigureStackingOrder(library call)							    XmDropSiteConfigureStackingOrder(library call)

NAME

       XmDropSiteConfigureStackingOrder -- A Drag and Drop function that reorders a stack of widgets that are registered drop sites

SYNOPSIS

       #include <Xm/DragDrop.h>
       void XmDropSiteConfigureStackingOrder(
       Widget widget,
       Widget sibling,
       Cardinal stack_mode);

DESCRIPTION

       XmDropSiteConfigureStackingOrder changes the stacking order of the drop site specified by widget. The stacking order controls the manner in
       which drag-under effects are clipped by overlapping siblings, regardless of whether they are active. The stack mode is relative	either	to
       the entire stack, or to another drop site within the stack. The stack order can be modified only if the drop sites are siblings in both the
       widget and drop site hierarchy, and the widget parent of the drop sites is registered as a composite drop site.

       widget	 Specifies the drop site to be restacked.

       sibling	 Specifies a sibling drop site for stacking operations. If specified, then widget is restacked relative to this drop site's  stack
		 position.

       stack_mode
		 Specifies  the  new stack position for the specified widget.  The values are XmABOVE and XmBELOW. If a sibling is specified, then
		 widget is restacked as follows:

		 XmABOVE   The widget is placed just above the sibling.

		 XmBELOW   The widget is placed just below the sibling.

		 If the sibling parameter is not specified, then widget is restacked as follows:

		 XmABOVE   The widget is placed at the top of the stack.

		 XmBELOW   The widget is placed at the bottom of the stack.

       For a complete definition of DropSite and its associated resources, see XmDropSite(3).

RELATED

       XmDropSite(3), XmDropSiteRetrieve(3), and XmDropSiteQueryStackingOrder(3).

												    XmDropSiteConfigureStackingOrder(library call)