* Causes fprintf to pad the output right up until it truly is n characters broad, exactly where n is definitely an integer benefit saved inside the a perform argument just previous that represented with the modified form.
In cases like this, it makes no variance, because you are replacing almost everything having an empty string (Despite the fact that It will be much better to implement s+ from an performance point of view). Should you ended up replacing that has a non-vacant string, The 2 would behave differently. Share Boost this response Observe
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Employing %s in scanf with out an explcit discipline width opens the same buffer overflow exploit that will get did; particularly, if there are a lot more figures during the enter stream compared to focus on buffer is sized to carry, scanf will Fortunately produce These added people to memory outdoors the buffer, perhaps clobbering a little something essential. However, contrary to in printf, You can not offer the sector with being a run time argument:
This is certainly relatively conventional error-checking code for your Python script that accepts command-line arguments.
The main difference lies in the way in which it get's handled. In the event you would have a gaggle of more info (such as) three spaces directly next one another s+ will take that group and turns The full it into a "", while s would proces each individual Place on its own.
And since your next parameter is vacant string "", there isn't any difference between the output of two situations.
Andrew HareAndrew Hare 351k7575 gold badges645645 silver badges641641 bronze badges three fifteen Be aware that this kind of string interpolation is deprecated in favor of the greater strong str.format process.
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this assignation can be done at initialization like char term="this can be a term" // the word variety of chars got this string now which is statically defined
First off you must recognize that final output of equally the statements will probably be very same i.e. to eliminate all the spaces from provided string.
So the main if assertion interprets to: when you have not passed me an argument, I'm going to tell you how you need to pass me an argument Down the road, e.g. you will see this on-monitor: