On 01/15/2015 12:13 PM, Nagaprasad Sathyanarayana wrote:
In a quest to find why good programmers are wary of the "Go To"
statement, came across this interesting article by /Edsger W. Dijkstra/ .
http://www.u.arizona.edu/~rubinson/copyright_violations/Go_To_Considered_Harmful.html.
goto statements that cause one to go back & forth across the code are
annoying to me. However, if goto statements are used to return control
from a common point within a function, they enhance readability and also
help in ensuring that we perform necessary cleanup/terminal actions for
a function in a single place.
It is to be noted that Dijkstra's article appeared before C was
invented. If you are interested in understanding more about goto,
Knuth's paper titled Structured Programming with go to statements [1]
and a lkml thread on the same [2] can be helpful.
Cheers,
Vijay
[1]
http://dl.acm.org/citation.cfm?id=356640&dl=ACM&coll=DL&CFID=472165232&CFTOKEN=27447667
(needs access to ACM)
[2]
http://koblents.com/Ches/Links/Month-Mar-2013/20-Using-Goto-in-Linux-Kernel-Code/
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