May i know how to pass an argument to a function in a shell script?
Sorry, i din stated that it is in a shell script in my previous post.
Means: checkStatus() {
...........
}
read status;
I wanna use the status in the function checkstatus, how... (2 Replies)
Hi All,
Calling a function with one argument and storing the return value in a shell script is as below:( so far I know)
value="`fun_1 "argument1"`"
Its working perfectly for me.
Can u help me with passing more than one argument and storing the return value
Thnaks in advance
JS (1 Reply)
Hi ,
I have three funcions f1, f2 and f3 .
f1 calls f2 and f2 calls f3 .
I have a global variable "period" which i want to pass to f3 .
Can i pass the variable directly in the definition of f3 ?
Pls help .
sars (4 Replies)
Hi All,
i have script like below..
echo "1) first option"
echo ""
echo "2) second option"
echo ""
echo "*) please enter the correct option"
read select
case $select in
1) echo "first option selected"
;;
2) echo "second option selected"
;;
*) echo "please enter the correct... (4 Replies)
Hi,
I have 2 ksh scripts.
Script1.ksh contains function definition.
script1.ksh
function f1() {
while getopts a:c: args
do
case $args in
a) ARG1=$OPTARG ;;
c) ARG2=$OPTARG ;;
\?) echo "Error no valid Arguments passed"
esac
done
echo $ARG1
echo $ARG2
script2.sh (2 Replies)
I have the following code :
function1 ()
{
print "January"
}
function2()
{
case $1 in
January)
print "Dzisiaj mamy styczen"
;;
*)
;;
}
main()
{ (1 Reply)
Hi,
I have a script that is scheduled with cron and runs every night. The cron part looks like this:
00 20 * * 0,1,2,3,4,5,6 /usr/local/bin/BACKUP TBTARM HOT DELETE
My issue is with the 3rd parameter. Somewhere in the script, i want to tell the script to delete some files if the 3rd... (7 Replies)
How to pass the alphabet character as a argument in case and in if block?
ex:
c=$1
if a-z ]]
then
echo "alphabet"
case $1 in
a-z) echo "the value is a alphabet"
edit by bakunin: please use CODE-tags. We REALLY mean it. (9 Replies)
Earlier I had one structure C
typedef struct c
{
int cc;
}CS;
I used to call a library function say int GetData(CS *x) which was returning me the above structure C with data.
GetData(CS *x)
Function call used to be like:
CS CSobj;
GetData(&CSObj);
Now there are two... (12 Replies)
I am trying to pass a second argument like so:
if ] then
export ARG2=$2
else
message "Second argument not specified: USAGE - $PROGRAM_NAME ARG1 ARG2"
checkerror -e 2 -m "Please specify if it is a history or weekly (H or W) extract in the 2nd argument"
fi
however, it always goes... (4 Replies)
Discussion started by: MIA651
4 Replies
LEARN ABOUT DEBIAN
trampoline_r
TRAMPOLINE(3) Library Functions Manual TRAMPOLINE(3)NAME
trampoline - closures as first-class C functions
SYNOPSIS
#include <trampoline_r.h>
function = alloc_trampoline_r(address, data0, data1);
free_trampoline_r(function);
is_trampoline_r(function)
trampoline_r_address(function)
trampoline_r_data0(function)
trampoline_r_data1(function)
DESCRIPTION
These functions implement closures as first-class C functions. A closure consists of a regular C function and a piece of data which gets
passed to the C function when the closure is called.
Closures as first-class C functions means that they fit into a function pointer and can be called exactly like any other C function. func-
tion = alloc_trampoline_r(address, data0, data1) allocates a closure. When function gets called, it stores in a special "lexical chain reg-
ister" a pointer to a storage area containing data0 in its first word and data1 in its second word and calls the C function at address.
The function at address is responsible for fetching data0 and data1 off the pointer. Note that the "lexical chain register" is a call-used
register, i.e. is clobbered by function calls.
This is much like gcc's local functions, except that the GNU C local functions have dynamic extent (i.e. are deallocated when the creating
function returns), while trampoline provides functions with indefinite extent: function is only deallocated when free_trampoline_r(func-
tion) is called.
is_trampoline_r(function) checks whether the C function function was produced by a call to alloc_trampoline_r. If this returns true, the
arguments given to alloc_trampoline_r can be retrieved:
trampoline_r_address(function) returns address,
trampoline_r_data0(function) returns data0,
trampoline_r_data1(function) returns data1.
SEE ALSO trampoline(3), gcc(1), varargs(3)PORTING
The way gcc builds local functions is described in the gcc source, file gcc-2.6.3/config/cpu/cpu.h.
AUTHOR
Bruno Haible <bruno@clisp.org>
ACKNOWLEDGEMENTS
Many ideas were cribbed from the gcc source.
22 October 1997 TRAMPOLINE(3)