Unsigned datatype

[prashant.khade1623]

Hi

When do we use unsigned data type. And what are the adantages of using
Unsigned.

[Peter Nilsson]

pr****************@gmail.com wrote:

When do we use unsigned data type.

When dealing with non-negative integers, e.g. object
sizes (size_t), and particularly when performing bitwise
manipulations.

And what are the adantages of using Unsigned.

Bure binary representation and modulo arithmetic.

--
Peter

[Nick Keighley]

On 21 Apr, 06:27, Peter Nilsson <[e-mail]:

[e-mail] wrote:

When do we use unsigned data type.

When dealing with non-negative integers, e.g. object
sizes (size_t), and particularly when performing bitwise
manipulations.

ie. ><< | & ^ ~

And what are the adantages of using Unsigned.

Bure binary representation and modulo arithmetic.

unsigned values don't overflow they simply wrap around.

unsigned u = 0;
u -= 1;

u now holds the largest possible unsigned int.
--
Nick Keighley

[Walter Roberson]

In article <b1**********************************@y18g2000pre. googlegroups.com>,
pr****************@gmail.com <pr****************@gmail.comwrote:

>When do we use unsigned data type.

Any day -except- the second Thursday or fifth Friday of the month.
The second Thursday is kept in memory of the death of George Boole
(Thursday Dec 8 1864); and the fifth Friday is when the
Regional Alamgamated Philisophers And Programmers hold their
meetings in pubs everywhere.

>And what are the adantages of using
Unsigned.

It's like a membership badge; if you don't know how to use unsigned
arithmetic then you don't get told where the next RAPAP meeting is.
--
"Do diddle di do,
Poor Jim Jay
Got stuck fast
In Yesterday." -- Walter De La Mare