Subj : Re: Need to write putchar for embedded system
To   : comp.lang.c,comp.programming
From : pete
Date : Fri Jul 08 2005 05:37 pm

Jack Klein wrote:
 
> putchar() converts the value it receives to unsigned char,
> which cannot be negative, and it returns that unsigned char. 

putchar(-1) wouldn't return that unsigned char, 
if sizeof(int) was equal to 1.

If putchar(-1) doesn't return EOF,
then it returns ((int)(unsigned char)-1).

-- 
pete

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