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-rw-r--r--klm/util/murmur_hash.cc15
1 files changed, 10 insertions, 5 deletions
diff --git a/klm/util/murmur_hash.cc b/klm/util/murmur_hash.cc
index fec47fd9..ef5783fe 100644
--- a/klm/util/murmur_hash.cc
+++ b/klm/util/murmur_hash.cc
@@ -117,13 +117,18 @@ uint64_t MurmurHash64B ( const void * key, std::size_t len, unsigned int seed )
return h;
}
+// Trick to test for 64-bit architecture at compile time.
+namespace {
+template <unsigned L> uint64_t MurmurHashNativeBackend(const void * key, std::size_t len, unsigned int seed) {
+ return MurmurHash64A(key, len, seed);
+}
+template <> uint64_t MurmurHashNativeBackend<4>(const void * key, std::size_t len, unsigned int seed) {
+ return MurmurHash64B(key, len, seed);
+}
+} // namespace
uint64_t MurmurHashNative(const void * key, std::size_t len, unsigned int seed) {
- if (sizeof(int) == 4) {
- return MurmurHash64B(key, len, seed);
- } else {
- return MurmurHash64A(key, len, seed);
- }
+ return MurmurHashNativeBackend<sizeof(void*)>(key, len, seed);
}
} // namespace util