swab.3: SYNOPSIS: Use 'restrict' in prototypes

Both POSIX and glibc use 'restrict' in swab().
Let's use it here too.

.../glibc$ grep_glibc_prototype swab
posix/unistd.h:1147:
extern void swab (const void *__restrict __from, void *__restrict __to,
		  ssize_t __n) __THROW __nonnull ((1, 2))
    __attr_access ((__read_only__, 1, 3))
    __attr_access ((__write_only__, 2, 3));
.../glibc$

Signed-off-by: Alejandro Colomar <alx.manpages@gmail.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>

diff --git a/man3/swab.3 b/man3/swab.3
index b68d698d771c12a7adc0e9b848e451c7013ed8cf..700d2d5f4fc678ae225207e6f5d62a515b3da713 100644 (file)
--- a/man3/swab.3
+++ b/man3/swab.3
@@ -36,7 +36,8 @@ swab \- swap adjacent bytes
 .BR "#define _XOPEN_SOURCE" "       /* See feature_test_macros(7) */"
 .B #include <unistd.h>
 .PP
-.BI "void swab(const void *" from ", void *" to ", ssize_t " n );
+.BI "void swab(const void *restrict " from ", void *restrict " to \
+", ssize_t " n );
 .fi
 .SH DESCRIPTION
 The