April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
Content preview from Go
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Jesteś w moim typie
Wskaźniki jako parametry odbiorcy metody
Oto problem, który może już wyglądać znajomo. Zdefiniowałeś nowy typ
Number
o typie bazowym
int
. Utworzyłeś w typie
Number
metodę
double
, która ma mnożyć wartość odbiorcy metody
przez 2, a następnie modyfikować wartość tego odbiorcy. Jednak w danych wyjściowych widać,
że odbiorca metody nie jest modyfikowany.
W
rozdziale 3
. używaliśmy funkcji
double
, której dotyczył podobny problem. Tam dowiedziałeś
się, że w parametrach funkcji zapisywana jest kopia wartości, z jakimi wywołano funkcję.
Oryginalne wartości nie trafiają do funkcji, dlatego modyfikacje kopii zostają
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.