C-String problem

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Originally Posted by syzn

woah, thanks for all the info. I don't know some of the code both of you posted, but I'll figure it out. I haven't learned much yet, hence, the horrible code I made.

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How are you learning c++? You may like to look at these sites for more info
http://www.learncpp.com/
http://www.cplusplus.com/doc/tutorial/

I have a book called C++ Early Objects. I'll look into those links as well though, thank you.

Quote:

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Originally Posted by syzn

I have a book called C++ Early Objects. I'll look into those links as well though, thank you.

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Is that book the one by Gaddis, Walters & Muganda?

Yes

Quote:

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Originally Posted by 2kaud

Code:

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void  lastChar(char const* str)
{
char const *const last = strchr(str, '\0');

        (last > str) ? std::cout << *(last - 1) : std::cout << "null";
}

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In addition to laserlight's post #10, I don't see any advantage in using the ternary operator here instead of a plain if-else. The result of the operation is discarded anyway.

Quote:

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Originally Posted by Eri523

I don't see any advantage in using the ternary operator here instead of a plain if-else. The result of the operation is discarded anyway.

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Guilty as charged:blush: In mitigation I was trying to identify a polymorphism bug at the time and I originally wrote

Code:

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//Don't try this at home
std::cout << (last > str) ? *(last - 1) : "null";

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but this doesn't compile of course! (incompatible operand types) So I just quickly changed it to

Code:

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(last > str) ? std::cout << *(last - 1) : std::cout << "null";

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Quote:

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Originally Posted by 2kaud

Code:

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//Don't try this at home
std::cout << (last > str) ? *(last - 1) : "null";

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:lol: In fact I considered suggesting that very variation to make the ternary operator at least half-way useful here, but came to the conclusion that it wouldn't compile before finishing my post. :)