On 16/10/2017 18:53, Stefan Ram wrote:
Ian Kelly <ian.g.ke...@gmail.com> writes:
I honestly can't remember the last time I programmed an endless loop,
and I also can't remember the last time I used a while loop.
Those two things are probably related.
My Python installation has a "Lib" directory.
»^ +\bwhile\b.*:$« has 1348 hits in this directory,
»^ +\bfor\b.*:$« has 8713. That's a ratio of 6.46.
In other words, while-loops are only 13 % of all loops
(while or for). That's a clear minority. But it does
not indicate that while loops are used almost ever.
It's presumably a characteristic of the language. And it depends on what
the language offers, so if there was no 'while' at all, I guess it would
be 100% 'for'.
(I just looked through my non-Python language at a couple of projects
and got these figures:
forall 29% (Equivalent to Python 'for')
for 36% (Simple iteration)
while 14% (about the same as your figure)
repeat-until 3%
N-times 11%
endless loop 6%
11% N-times loops doesn't sound a lot but it's one in every 9 loops.
What the figures don't show is that the N-times and endless loops are
probably used more with short test programs than in final applications,
so having a very quick way to express them is convenient.)
--
bartc
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