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-rw-r--r--src/base/hashmap.hh13
1 files changed, 8 insertions, 5 deletions
diff --git a/src/base/hashmap.hh b/src/base/hashmap.hh
index ce9325881..dfdf6ef90 100644
--- a/src/base/hashmap.hh
+++ b/src/base/hashmap.hh
@@ -95,8 +95,9 @@
#define hash_set unordered_set
#define hash_multiset unordered_multiset
-// these versions also have an existing hash function for strings
-#define HAVE_STRING_HASH 1
+// these versions also have an existing hash function for strings and
+// 64-bit integer types
+#define HAVE_HASH_FUNCTIONS 1
#if HAVE_STD_UNORDERED_MAP
@@ -152,6 +153,11 @@ namespace m5 {
//
__hash_namespace_begin
+
+// if the hash functions for 64-bit integer types and strings are not
+// already available, then declare them here
+#if !defined(HAVE_HASH_FUNCTIONS)
+
#if !defined(__LP64__) && !defined(__alpha__) && !defined(__SUNPRO_CC)
template<>
struct hash<uint64_t> {
@@ -168,9 +174,6 @@ __hash_namespace_begin
};
#endif
-// if the hash functions for strings are not already defined, then
-// declare them here
-#if !defined(HAVE_STRING_HASH)
template<>
struct hash<std::string> {
size_t operator()(const std::string &s) const {