on systems that have the intptr_t type, and for systems that don't
have it, they also almost certainly won't have -Wcast-qual, so we can use a
void* cast.
(This used to be commit
2132d38f9c5ba59825558d5ba084a514ebc2626b)
AC_CHECK_TYPE(loff_t,off_t)
AC_CHECK_TYPE(offset_t,loff_t)
AC_CHECK_TYPE(ssize_t, int)
+AC_CHECK_TYPE(intptr_t, void*)
############################################
#include <sys/xattr.h>
#endif
-#define discard_const_p(type, ptr) ((type *)discard_const(ptr))
-
#define TALLOC_ABORT(reason) smb_panic(reason)
+
+/*
+ this is a warning hack. The idea is to use this everywhere that we
+ get the "discarding const" warning from gcc. That doesn't actually
+ fix the problem of course, but it means that when we do get to
+ cleaning them up we can do it by searching the code for
+ discard_const.
+
+ It also means that other error types aren't as swamped by the noise
+ of hundreds of const warnings, so we are more likely to notice when
+ we get new errors.
+
+ Please only add more uses of this macro when you find it
+ _really_ hard to fix const warnings. Our aim is to eventually use
+ this function in only a very few places.
+
+ Also, please call this via the discard_const_p() macro interface, as that
+ makes the return type safe.
+*/
+#define discard_const(ptr) ((void *)((intptr_t)(ptr)))
+#define discard_const_p(type, ptr) ((type *)discard_const(ptr))
+
#endif /* _INCLUDES_H */
}
-/*
- this is a warning hack. The idea is to use this everywhere that we
- get the "discarding const" warning from gcc, effectively moving all
- the warnings to this one place. That doesn't actually fix the
- problem of course, but it means that when we do get to cleaning them
- up we can do it by searching the code for discard_const.
-
- It also means that other error types aren't as swamped by the noise
- of hundreds of const warnings, so we are more likely to notice when
- we get new errors.
-
- Please only add more calls to this function when you find it
- _really_ hard to fix const warnings. Our aim is to eventually use
- this function in only a very few places.
-
- Also, please call this via the discard_const_p() macro interface, as that
- makes the return type safe.
-*/
-void *discard_const(const void *ptr)
-{
- return (void *)ptr;
-}