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Overflowing an signed value is undefined. Use uintptr_t.

--- a/parse/htab.c

+++ b/parse/htab.c

@@ -262,14 +262,14 @@

 ulong ptrhash(void *key)

 {

-    return inthash((intptr_t)key);

+    return inthash((uintptr_t)key);

 }

 ulong inthash(uint64_t key)

 {

-    intptr_t h;

+    uintptr_t h;

-    h = (intptr_t) key;

+    h = (uintptr_t) key;

     h *= 357913941;

     h ^= h << 24;

     h += ~357913941;