C++ constructor format -

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possible duplicate:
what weird colon-member syntax in constructor?

hi,

in sams teach c++ in 21 days book, day 12: implementing inheritance, code snippet:

mammal(): itsage(2) , itsweight(5) {}

is equivalent saying?

mammal()  {  itsage(2);  itsweight(5);  }

what advantage first form have? usage in book?

thanks.

the first initialization list syntax, not function calls second snippet. http://www.parashift.com/c++-faq-lite/ctors.html#faq-10.6


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