https://gcc.gnu.org/bugzilla/show_bug.cgi?id=81629
Andrew Pinski <pinskia at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |9.0
Resolution|--- |FIXED
Status|NEW |RESOLVED
--- Comment #5 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
In GCC 9+ we produce:
<source>:2:27: warning: conflicting types for built-in function 'memcpy';
expected 'void *(void *, const void *, long unsigned int)'
[-Wbuiltin-declaration-mismatch]
2 | extern unsigned long long memcpy(unsigned long long, unsigned long
long, unsigned long long);
| ^~~~~~
<source>:1:1: note: 'memcpy' is declared in header '<string.h>'
+++ |+#include <string.h>
1 |
And that is because of r9-5637.
Note the C++ front-end was already doing the correct thing and produce in GCC
7+:<source>:2:31: warning: declaration of 'long long unsigned int memcpy(long
long unsigned int, long long unsigned int, long long unsigned int)' conflicts
with built-in declaration 'void* memcpy(void*, const void*, long unsigned int)'
[-Wbuiltin-declaration-mismatch]
extern "C" unsigned long long memcpy(unsigned long long, unsigned long long,
unsigned long long);
^~~~~~
So all fixed.
