November 2002
Beginner to intermediate
142 pages
4h 19m
English
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Integer Promotion
Operands of the types _Bool,
char, unsigned char,
short, and unsigned short, as
well as bit-fields, can be used in expressions wherever operands of
type int or unsigned int are
permissible. In such cases, integer
promotion
is performed on the operands: they are
automatically converted to int or
unsigned int. Such operands are converted to
unsigned int only if the type
int cannot represent all values of the original
type.
Thus C always “expects” values that
have at least type int. If c is
a variable of type char, then its value in the
expression:
c + '0'
is promoted to int before the addition takes place.
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
I’ve been on the O’Reilly platform for more than eight years. I use a couple of learning platforms, but I'm on O'Reilly more than anybody else. When you're there, you start learning. I'm never disappointed.Amir M.
I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.