about byte datatype

I want to know whether there is a datatype called byte in C.
If there plese explain me with a simple example

A byte is eight bits of memory, there is no generic byte type. Although, a char is a byte so I guess you could use that if the data can be expressed in a numerical form.

not an official one, anyway, but most declare it as:

typedef unsigned char byte;

Yeah a char will preform as a good way to store a byte. If you are coming from Java, or ever go to Java, I learned the hard way do not use chars to store bytes heh.

An unsigned character is a BYTE. (0->255)
A signed character is a BYTE. (-128->127)

Only difference is the range of values you can express within 8 bits in signed and unsigned. For signed, 1 bit is used as the sign bit and thus you lose how many values can be represented since you have 1 less bit.

Windows defines byte exacly as Sebastiani has shown.

>I want to know whether there is a datatype called byte in C.
No, but the char data type is directly equivalent to the smallest addressable unit on the machine. Essentially it's a byte. If you really want the name, you can do this:

Code:

---

typedef unsigned char byte;
typedef signed char sbyte;

---

>A byte is eight bits of memory
Not necessarily. A byte could be any number of bits greater than or equal to 8 (since that's a hard minimum required by C), even though a "byte" usually means an octet on most modern systems. It's better to think of a byte as the generic term for the smallest addressable unit on the machine than as a concrete data type with a set size.

>An unsigned character is a BYTE. (0->255)
That's assuming an 8-bit range.

>A signed character is a BYTE. (-128->127)
That's assuming an 8-bit range and two's complement signed representation. Both of which may not be the case. I don't recall the harish13 mentioning a specific system, and C is very generic. So you would be better off saying:

An unsigned char is a byte. At least 0->255.
A signed char is a byte. At least -127->127

;)

Yeah yeah u just eternally confuzzled the OP. LOL :D