[PD] Patch acting weird with Pd 0.46.6

[IOhannes m zmoelnig]

On 2015-06-04 10:03, Pierre Massat wrote:
> The mistake I made
> was to believe that print would send the current value to the console at
> each step of the loop (like print in a for loop in Python for instance),

i meant to reply to this, but forgot.
i still cannot resist, so:

python actually behaves the same here, as shows the following
implementation:

<weirdo.py>
def find_slash(counter):
    char = ord(string[counter - 1])
    if char != 47:
        find_slash(counter - 1)
    print("output: %s" % (char))
    print("counter: %s" % (counter))
    counter = counter - 1

string = '/blabla/snare.wav'
find_slash(len(string))
</weirdo.py>

but most likely you wouldn't write your python code like that (apart
from the fact that in python you would just use "string.rfind('/')")

myself, i would write the code as something like

<noweirdo.py>
def find_slash(counter):
    counter = counter - 1
    print("counter: %s" % (counter))
    char = ord(string[counter])
    print("output: %s" % (char))
    if char != 47:
        find_slash(counter)
</noweirdo.py>

which is the same but has the order reversed
esp. the recursive call has moved to the very end of the function,
*after* all the print() (a common technique to exploit tail recursion
optimisation; probably that's the reason why i did it, dunno)



gmfsdr
IOhannes

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