Most of the time when I wanted to use goto in my early days, I found that breaks and continues were better and easier to understand. I will admit that there are occasional nested if/elif/else code that get messy without a goto. But which smells worse? A "goto" package or a complex if/elif/else?
Ben Root On Thu, Sep 24, 2015 at 2:41 PM, Charles R Harris <charlesr.har...@gmail.com > wrote: > > > On Thu, Sep 24, 2015 at 12:13 PM, Yarko Tymciurak <yark...@gmail.com> > wrote: > >> >> >> On Thu, Sep 24, 2015 at 12:54 PM, Alexander Eberspächer < >> alex.eberspaec...@gmail.com> wrote: >> >>> On 24.09.2015 13:25, Christophe Bal wrote: >>> >>> > Can you give an example where GOTO is useful ? >>> >>> I think those pieces of code are best understood with some humour.. >>> >>> However, basically I can think two main causes for using goto: >>> >>> 1. Stop whatever your code is doing and jump towards the end of the >>> program. However, this is mainly something useful for languages without >>> exception handling and garbage collection. >>> >>> 2. Get out of something deeply nested. Also, this probably isn't very >>> useful in Python as there's exception handling. >>> >> >> I think there are more valid uses - I've read that "goto" basically is >> what a state machine does. >> Have a read of the brief implementation notes for "goto" in golang, for >> example. Goto may not be unreasonable to use, just most people would >> abuse. Sort of like "everyone shouldn't write assembly, but if you >> understand the machine, you can make good things happen". Without >> compiler/interpreter checks, more responsibility rests on the coder to keep >> out of trouble. >> > > I would agree about state machines. When implemented using the standard > control flow constructs they always look a bit artificial. > > Chuck > > > _______________________________________________ > NumPy-Discussion mailing list > NumPy-Discussion@scipy.org > https://mail.scipy.org/mailman/listinfo/numpy-discussion > >
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