December 2005
Beginner to intermediate
618 pages
20h 19m
English
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Name
toupper
Synopsis
Converts a lowercase alphabetic character to uppercase
#include <ctype.h> inttoupper( intc);
The toupper() function
returns the uppercase letter corresponding to the character value of
its argument c. If
c is not an lowercase letter, or if there
is no uppercase letter which corresponds to it, its value is
returned unchanged.
Tip
The note concerning locales under tolower() in this chapter applies to
toupper() as well.
Example
See the example for setlocale() in this
chapter.
See Also
isupper(), tolower(), islower(), towupper(), towlower(), towctrans()
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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.