what is sizeof() in c?

@kindawonderful
That's witty on multiple levels.

It‘s the size of your Variable or struct.
e.g. sizeof(int) = 4

RTFM?

Additional information:
It shows you the number of bytes that will be assigned in memory. With this information can you calculate the length of an array.
e.g.
int x[5];
size_t y = sizeof(x) / sizeof(int);
-> 5 = 20 / 4
It‘s the Common way for calculate the length.
The main problem by calculating is that you don’t know how many bytes assign in memory on your target system. For example on some micro controllers a „long“ type has 4 bytes and the „int“ type has also 4 or only 2 bytes.

Are you too stupid to google?

https://lmgtfy.com//...()+in+c%3F&iie=1

@Fast-Nop
Cppreference is the second link i get, when I search for c sizeof on duck duck go.

RTFM

Literally the name of the function implies what it does.

@Bybit260 It's an operator, not a function.

@Fast-Nop devRant broke the link 😆

@lmgtfy sizeof c

@Ranchu
https://lmgtfy.com/?q=sizeof+c

@Fast-Nop Yes, it was the autocorrect's fault.