0x08 vs 8

[Manvir Singh]

What is the deference in 0x08 and 8?

[shadow123]

There's no difference. 0x08 is in hexidecimal (with a base of 16).

[Hadar]

0x <-- Notation of a HEX base number.
0 <-- Notation of a decimal base number.

So 0x8 is hex.
08 (or just 8) is decimal.

In case you're not familiar with those number systems.
When we count, we count from 1 to 10, and from there we increase our tenths by 1. because we increase it each 10 numbers, it's a 10 based system).

HEX (hexadecimal) however is a 15 based system. it counts:

1 2 3 4 5 6 7 8 9 A B C D E F 10. and then it continues to:
11 12 13 14 15 16 17 18 19 1A 1B 1C etc. etc.

As for 0x8 and 8. they hold the same value.

[Peter87]

08 (or just 8) is decimal.

No, it's octal (base 8), but it will not compile because digits in octal numbers can't be as high as 8.

[Zephilinox]

8 is a decimal number

[Hadar]

@Peter87

I didn't mean 8 based. I just meant the number 8.

[Arjun Padmanabhan]

0*08 is a hexadecimal no: while
08 is a decimal number.









I Hope this is correct

[Hadar]

@Arjun Padmanabhan

Yes it is.

[coder777]

@Hadar / Arjun Padmanabhan

No it isn't.

Peter87 is right: in C/C++ a number with a leading zero is interpreted as octal

We do not count from 1 to 10. It is from 0 to 9. 10 is already a combination.
Similar hex: 0x0 to 0xf
octal: 00 to 07

[viliml]

8->8 in decimal
0x8->8 in hexadecimal
08->ERROR!! ERROR!! 8 in octal-no such digit!

[Hadar]

@coder777 Didn't take octal into consideration at all. I believe you're correct. as for the counting, I made a point and so tried to familiarize it as much as I could. it's okay that you mentioned it but you don't really have to read into it that much.