Both POSIX and glibc use 'restrict' in strcpy(), strncpy(). Let's use it here too. .../glibc$ grep_glibc_prototype strcpy string/string.h:125: extern char *strcpy (char *__restrict __dest, const char *__restrict __src) __THROW __nonnull ((1, 2)); .../glibc$ grep_glibc_prototype strncpy string/string.h:128: extern char *strncpy (char *__restrict __dest, const char *__restrict __src, size_t __n) __THROW __nonnull ((1, 2)); .../glibc$ Signed-off-by: Alejandro Colomar <alx.manpages@xxxxxxxxx> --- man3/strcpy.3 | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/man3/strcpy.3 b/man3/strcpy.3 index 46993cdb3..ade8b9412 100644 --- a/man3/strcpy.3 +++ b/man3/strcpy.3 @@ -39,8 +39,9 @@ strcpy, strncpy \- copy a string .nf .B #include <string.h> .PP -.BI "char *strcpy(char *" dest ", const char *" src ); -.BI "char *strncpy(char *" dest ", const char *" src ", size_t " n ); +.BI "char *strcpy(char *restrict " dest ", const char *" src ); +.BI "char *strncpy(char *restrict " dest ", const char *restrict " src \ +", size_t " n ); .fi .SH DESCRIPTION The -- 2.30.1.721.g45526154a5