Both POSIX and glibc use 'restrict' in strxfrm(). Let's use it here too. .../glibc$ grep_glibc_prototype strxfrm string/string.h:150: extern size_t strxfrm (char *__restrict __dest, const char *__restrict __src, size_t __n) __THROW __nonnull ((2)) __attr_access ((__write_only__, 1, 3)); .../glibc$ Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man3/strxfrm.3 | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/man3/strxfrm.3 b/man3/strxfrm.3 index a6e0e4515..276497450 100644 --- a/man3/strxfrm.3 +++ b/man3/strxfrm.3 @@ -34,7 +34,8 @@ strxfrm \- string transformation .nf .B #include <string.h> .PP -.BI "size_t strxfrm(char *" dest ", const char *" src ", size_t " n ); +.BI "size_t strxfrm(char *restrict " dest ", const char *restrict " src , +.BI " size_t " n ); .fi .SH DESCRIPTION The -- 2.30.1.721.g45526154a5