What does this function do:

What does this function do:

string f(const string &x) {
return x.empty()? x : f(x.substr(1)) + x[0];
}

What does this piece of code perform:

char *a=...., *b=....;
while(*b++ = *a++);

Namataraginu
Profile Answers by Namataraginu Questions by Namataraginu
Jan 31st, 2008
10
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Questions by Namataraginu

C++

Answer

Showing Answers 1 - 10 of 10 Answers

bapu_60
Profile Answers by bapu_60

Feb 20th, 2008

I think the first one is reversing the string and the second one is copying one string to other

rsuzoka
Profile Answers by rsuzoka

Mar 22nd, 2008

Yeah, the first one reverses the string. I'm not too sure about the second one - it looks more like comparing two strings, rather than copying one to another.

Any other comments????

bapu_60
Profile Answers by bapu_60

Mar 24th, 2008

No if you see it is a single "=",that is copying and it terminates when *a=*b=''

santhosh.kanchanapally
Profile Answers by santhosh.kanchanapally Questions by santhosh.kanchanapally

Feb 17th, 2009

char *a="hai", *b="san";
while(*b++ = *a++);

This program leads to crash, as we are assigning one memory location to other memory location.

shantanu_hbd
Profile Answers by shantanu_hbd

Apr 25th, 2009

Second function is copying 'a' to 'b' provided that 'a' should be a null terminated string.