generic pq

1 files changed, 42 insertions, 0 deletions

diff --git a/src/basic_traits.c b/src/basic_traits.c
new file mode 100644
index 0000000..386c72f
--- /dev/null
+++ b/src/basic_traits.c
@@ -0,0 +1,42 @@
+#include "basic_traits.h"
+
+#include <string.h>
+
+#include "mmhash.h"
+
+#define BASIC_TRAITS_IMPL(T) \
+    bool T##_eq(T* lhs, T* rhs) { \
+        return *lhs == *rhs; \
+    } \
+    int T##_cmp(T* lhs, T* rhs) { \
+        if (*lhs == *rhs) return 0; \
+        if (*lhs < *rhs) return -1; \
+        return 1; \
+    } \
+    uint64_t T##_hash(T* x) { \
+        return mmhash(x, sizeof(T), 0); \
+    }
+
+BASIC_TRAITS_IMPL(Char);
+BASIC_TRAITS_IMPL(Bool);
+BASIC_TRAITS_IMPL(Int);
+BASIC_TRAITS_IMPL(Long);
+BASIC_TRAITS_IMPL(UInt);
+BASIC_TRAITS_IMPL(ULong);
+BASIC_TRAITS_IMPL(Double);
+BASIC_TRAITS_IMPL(Float);
+
+bool String_eq(String* lhs, String *rhs) {
+    return strcmp(*lhs, *rhs) == 0;
+}
+
+int String_cmp(String* lhs, String *rhs) {
+    return strcmp(*lhs, *rhs);
+}
+
+ULong String_hash(String *x) {
+    size_t len = strlen(*x);
+    return mmhash(*x, len, 0);
+}
+
+