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Oct 29, 2008 · It is not currently accepting new answers or interactions. In this thread, we look at examples of good uses of goto in C or C++. It's inspired by an answer which people voted up because they thought I was joking. Summary (label changed from original to make intent even clearer): infinite_loop: // code goes here. goto infinite_loop;
Apr 25, 2009 · You are missing a key point in this example: access to the resources you are trying to cleanup. The most common case is having the resources defined in the same scope as where you are placing the gotos, making the use of goto even more necessary, since they wouldn't even be available at cleanup_x() scopes.
Dec 2, 2012 · 1. Yes, this is one alternative to goto for breaking out of multiple loops at once. Put every inner loop in a function. The reason it works is because the return statement actually is like a goto itself, that jumps to the end of the function. – potrzebie.
Feb 20, 2022 · The goto statement unconditionally transfers control to the statement labeled by the identifier. The identifier shall be a label (6.1) located in the current function. ...or in Standard C. From $6.8.6.1/1 of the C Language Standard. The identifier in a goto statement shall name a label located somewhere in the enclosing function.
Mar 20, 2011 · First, I compared label: and goto vs. do {} while. You can't compare a for () {} loop with this (in good faith), because a for loop always evaluates the condition first. This time around, the condition is evaluated only after the loop code has been executed once. #include <iostream>. void testGoto() {.
Aug 30, 2013 · But, obviously, goto is accepted as a valid command, otherwise your compiler / interpreter wouldn't know what to do with it. Even in C / C++ it's possible to use goto, and that language even has a formal, ISO specification. So, probably, there should be some case where only by using goto it's possible to accomplish
Mar 23, 2017 · 7. @Massif: "still" was intended to emphasise the modern opinion of the use of "goto" as a prelude to spaghetti code and a lack of readbility in source code. Very rarely do you see any code examples including this particular keyword which was why I was interested in asking in the first place. – Brian Scott. Jul 1, 2011 at 12:36.
Aug 19, 2010 · 112. Nothing is wrong with goto if it is used properly. The reason it is "taboo" is because in the early days of C, programmers (often coming from an assembly background) would use goto to create incredibly hard-to-understand code. Most of the time, you can live without goto and be fine.
Oct 3, 2013 · as Armen has rightly pointed out, goto deserves some warning. the most popular ist Dijsktra's GOTO statements considered harmful, as it is somewhat counterproductive to structured programming. a more structured approach would be:
Apr 7, 2014 · 10. That's because goto skips the shadowing variable i 's initialization. This is one of the minor nuances of the differences between C and C++. In strict C++ go to crossing variable initialization is an error, while in C it's not. GCC also confirms this, when you compile with -std=c11 it allows while with std=c++11 it complains: jump to label ...
