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[Glacier] Move hashmap to a real hash implementation.

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This commit is contained in:
Drew Galbraith 2023-11-22 11:19:21 -08:00
parent 76fd3fc176
commit 28d9e37b87
4 changed files with 60 additions and 26 deletions
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28
lib/glacier/container/hash_map.h
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@ -7,35 +7,11 @@
#include "glacier/container/pair.h"
#include "glacier/status/error.h"
#include "glacier/string/string.h"
#include "glacier/util/hash.h"
namespace glcr {
template <typename T>
struct HashFunc {
uint64_t operator()(const T&);
};
template <>
struct HashFunc<uint64_t> {
uint64_t operator()(const uint64_t& value) {
// FIXME: Write a real hash function.
return 0xABBAABBAABBAABBA ^ value;
}
};
template <>
struct HashFunc<String> {
uint64_t operator()(const String& value) {
// FIXME: Write a real hash function.
uint64_t acc = 0;
for (uint64_t i = 0; i < value.length(); i++) {
acc += value[i];
}
return 0xABBAABBAABBAABBA ^ acc;
}
};
template <typename K, typename V, class H = HashFunc<K>>
template <typename K, typename V, class H = Hash<K>>
class HashMap {
public:
HashMap() = default;