Re: == og < operatorar � String klasa -- SkilaboÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ°askjÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ³ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ°a TÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ¶lvunarfrÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ¦ÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂÃÂ°i 2

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Date Posted: 09:13:47 04/14/02 Sun
Author: Hj�lmt�r
Subject: Re: == og < operatorar � String klasa
In reply to: R�kkvi 's message, "== og < operatorar � String klasa" on 07:38:15 04/14/02 Sun

>�g skil ekki alveg hvernig �etta virkar
>
>int String::operator==(const String& rhs)
>{
> return ( strcmp(itsString, rhs.itsString) == 0 );
>}
>
>�a� � a� skilast int �t �r a�fer�inni, en hva� kemur
>�t �r
>( strcmp(itsString, rhs.itsString) == 0 ); ? Hvers
>vegna er == 0 � eftir strcmp(itsString, rhs.itsString)
>?

Falli� strcmp tekur inn tvo C-strengi (�.e. vektora af char, sem enda � n�llb�ti) og skila �t heilt�lu sem er
m�nustala ef fyrri strengurinn er framar � stafr�fsr��, pl�stala ef seinni strengurinn er framar og 0 ef strengirnir
eru eins (flettu t.d. upp� strcmp � hj�lpinni � Visual C++). Vi� getum �v� ekki nota� �ttaki� �r strcmp beint
sem sanngildi, �v� a� 0 ��ir �satt, en ekki-0 ��ir satt. Ni�ursta�an �r samanbur�inum "strcmp(...) == 0" er 1 ef
hann gildir (�.e. �ttaki� �r fallinu er 0), en 0 ef hann gildir ekki (�.e. annar strengurinn er framar en hinn �
stafr�fsr��).

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