blob: 22be5e2d87c29b54958c2ee5b9259c6cd17346da (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
|
@node fscanf
@section @code{fscanf}
@findex fscanf
POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/fscanf.html}
Gnulib module: stdio, nonblocking
Portability problems fixed by Gnulib module @code{stdio}, together with module @code{nonblocking}:
@itemize
@item
When reading from a non-blocking pipe whose buffer is empty, this function
fails with @code{errno} being set to @code{EINVAL} instead of @code{EAGAIN} on
some platforms:
mingw, MSVC 14.
@end itemize
Portability problems not fixed by Gnulib:
@itemize
@item
C99 and POSIX.1-2001 and later require end-of-file to be sticky, that
is, they require this function to act as if it reads end-of-file if
@code{feof} would return nonzero. However, on some systems this
function attempts to read from the underlying file descriptor even if
the stream's end-of-file indicator is set. These systems include
glibc and default Solaris.
@item
On Windows platforms (excluding Cygwin), this function does not set @code{errno}
upon failure.
@item
On Windows, this function doesn't support the @code{hh}, @code{ll}, @code{j},
@code{t}, @code{z} size specifiers.
@end itemize
|
