April 2020
Intermediate to advanced
506 pages
20h 7m
Polish
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104 Rozdział 3.
Wskaźniki jako typy
Typy wskaźnikowe
Typ wskaźnika jest zapisywany za pomocą symbolu
*
, po którym następuje typ zmiennej
wskazywanej przez wskaźnik. Na przykład typ wskaźnika prowadzącego do zmiennej typu
int
to
*int
(możesz to czytać jako „wskaźnik do wartości typu
int
”).
Możesz użyć funkcji
reflect.TypeOf
, aby wyświetlić typy wskaźników z poprzedniego programu:
Można deklarować zmienne do przechowywania wskaźników. Taka zmienna może
przechowywać wyłącznie wskaźniki do wartości jednego typu, np. tylko wskaźniki
*int
, tylko wskaźniki
*float64
itd.
Jeśli od razu przypisujesz wartość do zmiennej wskaźnikowej, to (podobnie jak
przy ...
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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.