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-rw-r--r--manual/stdio.texi20
1 files changed, 10 insertions, 10 deletions
diff --git a/manual/stdio.texi b/manual/stdio.texi
index 39fd4fb123..977989d95e 100644
--- a/manual/stdio.texi
+++ b/manual/stdio.texi
@@ -2357,7 +2357,8 @@ make_message (char *name, char *value)
@{
/* @r{Reallocate buffer now that we know
how much space is needed.} */
- buffer = (char *) xrealloc (buffer, nchars + 1);
+ size = nchars + 1;
+ buffer = (char *) xrealloc (buffer, size);
if (buffer != NULL)
/* @r{Try again.} */
@@ -2392,8 +2393,9 @@ This function is similar to @code{sprintf}, except that it dynamically
allocates a string (as with @code{malloc}; @pxref{Unconstrained
Allocation}) to hold the output, instead of putting the output in a
buffer you allocate in advance. The @var{ptr} argument should be the
-address of a @code{char *} object, and @code{asprintf} stores a pointer
-to the newly allocated string at that location.
+address of a @code{char *} object, and a successful call to
+@code{asprintf} stores a pointer to the newly allocated string at that
+location.
The return value is the number of characters allocated for the buffer, or
less than zero if an error occurred. Usually this means that the buffer
@@ -4852,8 +4854,9 @@ Got r
@comment GNU
@deftypefun {FILE *} open_memstream (char **@var{ptr}, size_t *@var{sizeloc})
This function opens a stream for writing to a buffer. The buffer is
-allocated dynamically (as with @code{malloc}; @pxref{Unconstrained
-Allocation}) and grown as necessary.
+allocated dynamically and grown as necessary, using @code{malloc}.
+After you've closed the stream, this buffer is your responsibility to
+clean up using @code{free} or @code{realloc}. @xref{Unconstrained Allocation}.
When the stream is closed with @code{fclose} or flushed with
@code{fflush}, the locations @var{ptr} and @var{sizeloc} are updated to
@@ -5067,14 +5070,11 @@ You should define the function to perform seek operations on the cookie
as:
@smallexample
-int @var{seeker} (void *@var{cookie}, fpos_t *@var{position}, int @var{whence})
+int @var{seeker} (void *@var{cookie}, off64_t *@var{position}, int @var{whence})
@end smallexample
For this function, the @var{position} and @var{whence} arguments are
-interpreted as for @code{fgetpos}; see @ref{Portable Positioning}. In
-the GNU library, @code{fpos_t} is equivalent to @code{off_t} or
-@code{long int}, and simply represents the number of bytes from the
-beginning of the file.
+interpreted as for @code{fgetpos}; see @ref{Portable Positioning}.
After doing the seek operation, your function should store the resulting
file position relative to the beginning of the file in @var{position}.