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Fix description of user provided write function 

[BZ #2074]
	* stdio.texi (Hook Functions): The user provided writer function
	is not allowed to return -1.
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Petr Baudis 2012-04-12 21:00:49 +02:00 committed by Andreas Jaeger
parent 55939d6d45
commit 247c3ede39
2 changed files with 8 additions and 1 deletions
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6
ChangeLog
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@ -1,3 +1,9 @@
2012-04-12 Petr Baudis <pasky@ucw.cz>
[BZ #2074]
* stdio.texi (Hook Functions): The user provided writer function
is not allowed to return -1.
2012-04-11 David S. Miller <davem@davemloft.net>
* sysdeps/sparc/fpu/libm-test-ulps: Update.

3
manual/stdio.texi
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@ -5021,7 +5021,8 @@ ssize_t @var{writer} (void *@var{cookie}, const char *@var{buffer}, size_t @var{
This is very similar to the @code{write} function; see @ref{I/O
Primitives}. Your function should transfer up to @var{size} bytes from
the buffer, and return the number of bytes written. You can return a
value of @code{-1} to indicate an error.
value of @code{0} to indicate an error. You must not return any
negative value.
You should define the function to perform seek operations on the cookie
as: