what is the definition on the key word int

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Hi all,

what is the definition on the key word int.
How the internal working ....

Regards,
Shefeek

Posted 10-Jan-13 6:37am

shefeekcm

Updated 10-Jan-13 6:53am

ridoy

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ridoy 10-Jan-13 12:53pm

How the internal working .... what does it mean?!

Sergey Alexandrovich Kryukov 10-Jan-13 13:09pm

You are just wasting time. Before asking question, better prepare yourself to be a qualified inquirer, read on the topic, ask a question only if you feel you stuck.
—SA

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ridoy · Answer 1 · 2013-01-10T06:57:00

Solution 1

An integer(int) type variable is a variable that can only hold whole numbers (eg. -2, -1, 0, 1, 2).An int is either 2 or 4 bytes .
See details from here..
http://www.learncpp.com/cpp-tutorial/24-integers/[^]

Posted 10-Jan-13 6:57am

ridoy

Comments

PIEBALDconsult 10-Jan-13 13:31pm

Really? I seem to recall putting characters in an integer on occasion.

JackDingler 10-Jan-13 17:23pm

A char is simply an 8 bit int.
Or one byte...

PIEBALDconsult 10-Jan-13 19:56pm

Oh, but it's so much more. And when I put four of them in an int, boy now we're talkin'.

nv3 10-Jan-13 14:36pm

Your answer is not entirely correct. An int can have other sizes than just 2 or 4 bytes, depending on the computer architecture. 2 and 4 bytes are common sizes on 16- and 32-bit archtecture though. And your answer certainly deserves more than a 1.

jinchuan97 · Answer 2 · 2013-01-10T15:40:00

Solution 2

for example: in 16 bits OS int is 2bytes, in 32 bits OS int is 4 bytes.

Posted 10-Jan-13 15:40pm

jinchuan97

Rob Grainger · Answer 3 · 2013-01-11T10:44:00

An int is defined as a signed value of whatever size a particular compiler decides is reasonable. If I remember correctly, it must be at least 16-bit.

The standard defines only that:

sizeof(char) <= sizeof(short) <= sizeof(int) <= sizeof(long) (etc. other variant's depend on support, e.g. __int64, long long)

(sizeof(t) is the size (in bytes) of the type t supplied)