[U-Boot] [PATCH v4 04/13] Add isblank

[Mike Frysinger]

On Tuesday, August 23, 2011 17:06:52 Jason Hobbs wrote:
> Existing ctype checks are implemented using a 256 byte lookup table,
> allowing each character to be in any of 8 character classes. Since there
> are 8 existing character classes without the blank class, I implemented
> isblank without using the lookup table.  Since there are only two blank
> characters - tab and space - this is a more reasonable approach than
> doubling the size of the lookup table to accommodate one more class.

and isspace() doesnt work because ... ?
-mike
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