Both POSIX and glibc use 'restrict' in pthread_create(). Let's use it here too. .../glibc$ grep_glibc_prototype pthread_create sysdeps/htl/pthread.h:212: extern int pthread_create (pthread_t *__restrict __threadp, __const pthread_attr_t *__restrict __attr, void *(*__start_routine)(void *), void *__restrict __arg) __THROWNL __nonnull ((1, 3)); sysdeps/nptl/pthread.h:200: extern int pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine) (void *), void *__restrict __arg) __THROWNL __nonnull ((1, 3)); .../glibc$ Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man3/pthread_create.3 | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/man3/pthread_create.3 b/man3/pthread_create.3 index a1ede6e96..14fd37220 100644 --- a/man3/pthread_create.3 +++ b/man3/pthread_create.3 @@ -30,8 +30,10 @@ pthread_create \- create a new thread .nf .B #include <pthread.h> .PP -.BI "int pthread_create(pthread_t *" thread ", const pthread_attr_t *" attr , -.BI " void *(*" start_routine ")(void *), void *" arg ); +.BI "int pthread_create(pthread_t *restrict " thread , +.BI " const pthread_attr_t *restrict " attr , +.BI " void *(*" start_routine ")(void *)," +.BI " void *restrict " arg ); .fi .PP Compile and link with \fI\-pthread\fP. -- 2.30.1