With a simple backslash, '\0' ended up as ' ' in the man output.
Reported-by: Štěpán Němec <stepnem@gmail.com>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
No implementation or spec requires *n to be 0 to allocate a new buffer:
* musl checks for !*lineptr
(and sets *n=0 for later allocations)
* glibc checks for !*lineptr || !*n
(but only because it allocates early)
* NetBSD checks for !*lineptr
(and sets *n=0 for later allocations)
(but specifies *n => mlen(*lineptr) >= *n as a precondition,
to which this appears to be an exception)
* FreeBSD checks for !*lineptr and sets *n=0
(and specifies !*lineptr as sufficient)
* Lastly, POSIX.1-2017 specifies:
> If *n is non-zero, the application shall ensure that *lineptr
> either points to an object of size at least *n bytes,
> or is a null pointer.
The new wording matches POSIX, even if it arrives at the point slightly
differently
Signed-off-by: Ahelenia Ziemiańska <nabijaczleweli@nabijaczleweli.xyz>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
fpurge(i_stream) does the same as fflush(i_stream), AFAIK.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
See <bits/byteswap.h> in glibc.
These macros call functions of the form __bswap_N(),
which use uintN_t.
Even though it's true that they are macros,
it's transparent to the user.
The user will see their results casted to unsigned types
after the conversion due to the underlying functions,
so it's better to document these as the underlying functions,
specifying the types.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Both POSIX and glibc use 'restrict' in
pthread_attr_getinheritsched().
Let's use it here too.
.../glibc$ grep_glibc_prototype pthread_attr_getinheritsched
sysdeps/htl/pthread.h:90:
extern int pthread_attr_getinheritsched (const pthread_attr_t *__restrict __attr,
int *__restrict __inheritsched)
__THROW __nonnull ((1, 2));
sysdeps/nptl/pthread.h:313:
extern int pthread_attr_getinheritsched (const pthread_attr_t *__restrict
__attr, int *__restrict __inherit)
__THROW __nonnull ((1, 2));
.../glibc$
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Neither POSIX or glibc use 'const' in
pthread_mutexattr_setrobust().
Remove it.
.../glibc$ grep_glibc_prototype pthread_mutexattr_setrobust
sysdeps/htl/pthread.h:355:
extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr,
int __robustness)
__THROW __nonnull ((1));
sysdeps/nptl/pthread.h:888:
extern int pthread_mutexattr_setrobust (pthread_mutexattr_t *__attr,
int __robustness)
__THROW __nonnull ((1));
.../glibc$
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
The rest of the page writes the characters without naming them.
Follow that convention.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Improved the `getopt(3)` man page in the following ways:
1) Defined the existing term "legitimate option character".
2) Added an additional NOTE stressing that arguments are parsed in strict
order and the implications of this when numeric options are utilised.
Signed-off-by: James O. D. Hunt <jamesodhunt@gmail.com>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
In b0b19983d9 we removed
<sys/types.h>. For the same reasons there, remove now <sys/ipc.h>
from many pages.
If someone wonders why <sys/ipc.h> was needed, the reason was to
get all the definitions of IPC_* constants. However, that header
is now included by <sys/msg.h>, so it's not needed anymore to
explicitly include it. Quoting POSIX: "In addition, the
<sys/msg.h> header shall include the <sys/ipc.h> header."
There were some remaining cases where I forgot to remove
<sys/types.h>; remove them now too.
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
My initial reading of this was that type modifiers were probably
not supported. But they are, and this is actually documented
further up, in the type modifiers documentation. But to make it
clearer, let's copy the language that printf(3) has in its %n
section.
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Michael Kerrisk