Efficient looping over strings

ABAPers,
I need to loop over all the characters in a string. Here is the pseudo code:
data: myData TYPE string.
data: n TYPE i.
data: ch TYPE char1.
n = STRLEN( myData).
DO n TIMES.
ch = myData(sy-index).
ENDDO.
While this code would work, the problem is that I am actually iterating over myData two times. STRLEN itself is internally iterating over myData to compute the length.
Is there a more efficient looping mechanism without going through STRLEN?
Thank you in advance for your help.
Pradeep

Hi,
You can try this when it comes to converting things
    WHILE myData IS NOT INITIAL.
do something
    ENDIF.
    myData = myData+1(*).
Eddy
PS.
Put yourself on the SDN world map (http://sdn.idizaai.be/sdn_world/sdn_world.html) and earn 25 points.
Spread the wor(l)d!

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user10393090 wrote:
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sanjeevchauhan wrote:
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Oracle related stuff blog:
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Efficient looping over strings

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