diff options
| -rw-r--r-- | hash.h | 12 |
1 files changed, 9 insertions, 3 deletions
@@ -1,5 +1,5 @@ /* - * Copyright (c) 2010-2015 Richard Braun. + * Copyright (c) 2010-2017 Richard Braun. * All rights reserved. * * Redistribution and use in source and binary forms, with or without @@ -50,12 +50,14 @@ #ifndef _HASH_H #define _HASH_H +#include <assert.h> #include <stdint.h> #ifdef __LP64__ #define HASH_ALLBITS 64 #define hash_long(n, bits) hash_int64(n, bits) #else /* __LP64__ */ +static_assert(sizeof(long) == 4, "unsupported data model"); #define HASH_ALLBITS 32 #define hash_long(n, bits) hash_int32(n, bits) #endif @@ -93,10 +95,14 @@ hash_int64(uint64_t n, unsigned int bits) return hash >> (64 - bits); } -static inline unsigned long +static inline uintptr_t hash_ptr(const void *ptr, unsigned int bits) { - return hash_long((unsigned long)ptr, bits); + if (sizeof(uintptr_t) == 8) { + return hash_int64((uintptr_t)ptr, bits); + } else { + return hash_int32((uintptr_t)ptr, bits); + } } static inline unsigned long |