gcc, UTF-8 and limits.h

Posted by bobby on Stack Overflow See other posts from Stack Overflow or by bobby
Published on 2010-04-18T18:14:26Z Indexed on 2010/04/18 18:23 UTC
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gcc

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utf-8

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linux

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c

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locale

My OS is Debian, my default locale is UTF-8 and my compiler is gcc. By default CHAR_BIT in limits.h is 8 which is ok for ASCII because in ASCII 1 char = 8 bits. But since I am using UTF-8, chars can be up to 32 bits which contradicts the CHAR_BIT default value of 8.

If I modify CHAR_BIT to 32 in limits.h to better suit UTF-8, what do I have to do in order for this new value to come into effect ? I guess I have to recompile gcc ? Do I have to recompile the linux kernel ? What about the default installed Debian packages, will they work ?

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