Expert: Joydeep Bhattacharya - 11/22/2007

Question
char has a range -128 to 127. it can be stored in 1 Bit= 8 bytes how can we store -128 into 8 bytes

Answer
hi Gandhi

check out this code
void main()
{
char c;
c = -128;
printf("%c",c);
}
this is how you store -128 into a char variable of 8 bits
where 7 bits are used for storing the number and the last bit is used as flag to identify whether the number is possitive or negative, and that is the reason why the range of variable gets increased when its is declared as unsigned where all the bits are used for storing the number.

regards
Joydeep Bhattacharya
http://www.scodz.com