Go4Expert - Explain output

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phiber_optik

18Feb2008 21:43

Explain output

I used Turbo C compiler

Code:

#include<stdio.h>

#include<conio.h>

#define STYLE1 char

void main()

{

 typedef char STYLE2;

 STYLE1 x;

 STYLE2 y;

 clrscr();

 x=255;

 y=255;

 printf("%d %d",x,y);

}

output: -1 -1
Pls explain how?

technosavvy

19Feb2008 11:09

Re: Explain output

because char is treated as signed char...
the range for signed char is -128 to 127 ...

now think on these terms
1) number is stored as its binary equivalent...
2) when a number is signed it most significant bit is always high i.e. 1
3) a negative number is represented as it's 2's compliment

i believe when u think on these terms..u will easily understand the o/p.

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