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Passing arrays between functions

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# 1  
Old 09-10-2008
Passing arrays between functions
Hi,
I have a function that hold 3 arrayies.
I need to pass them to another function as an input, for further use
Could you please explain how to do that.
Thanks
# 2  
Old 09-10-2008
Can you tell us which language/utility you are using?
# 3  
Old 09-10-2008
An example how you can pass two arrays to a function:

Code:
#!/bin/ksh

Pass_Arrays ()
{
  nelem=${#arr[*]}  # Total number of elements
  nelem1=$1         # Number of elements 1st array
  nelem2=$2         # Number of elements 2nd array
  shift; shift

  i=0
  
  while [ $i -lt $nelem1 ]; do  # Fill 1st array
    arr_one[$i]="$1"
    echo ${arr_one[$i]}
    shift
    let i=i+1
  done
  
  i=0
  
  while [ $i -lt $nelem2 ]; do  # Fill 1st array
    arr_two[$i]="$1"
    echo ${arr_two[$i]}
    shift
    let i=i+1
  done
}

args1=( One two three four )
args2=( Five six seven )

nelements1=${#args1[*]}
nelements2=${#args2[*]}

Pass_Arrays `echo $nelements1 $nelements2 ${args1[@]} ${args2[@]}`

exit 0

Regards
# 4  
Old 09-11-2008
Hi Franklin,

Thank you for your detailed example.
I dont understand why its faild to run :

vi test5.sh

Code:
#!/bin/ksh

Pass_Arrays ()
{
  nelem=${#arr[*]}  # Total number of elements
  nelem1=$1         # Number of elements 1st array
  nelem2=$2         # Number of elements 2nd array
  shift; shift

  i=0
  
  while [ $i -lt $nelem1 ]; do  # Fill 1st array
    arr_one[$i]="$1"
    echo ${arr_one[$i]}
    shift
    let i=i+1
  done
  
  i=0
  
  while [ $i -lt $nelem2 ]; do  # Fill 1st array
    arr_two[$i]="$1"
    echo ${arr_two[$i]}
    shift
    let i=i+1
  done
}

args1=( One two three four )
args2=( Five six seven )

nelements1=${#args1[*]}
nelements2=${#args2[*]}

Pass_Arrays `echo $nelements1 $nelements2 ${args1[@]} ${args2[@]}`

exit 0

Code:
/tmp >./test5.sh 
./test5.sh[29]: syntax error: `(' unexpected

==>The error is related to this line: args1=( One two three four )

Thanks Again for your kindly help.
Last edited by Franklin52; 04-07-2011 at 12:10 PM.. Reason: code tags
# 5  
Old 09-11-2008
Maybe your version doesn't support that way to fill an array, replace these lines:

Code:
args1=( One two three four )
args2=( Five six seven )

with:

Code:
set -A args1 One two three four
set -A args2 Five six seven

Regards
Last edited by Franklin52; 09-11-2008 at 08:04 AM..
# 6  
Old 09-11-2008
Hi Franklin,
Its worked !
Thanks again .
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