1 files changed, 35 insertions, 0 deletions
diff --git a/katomic/atom.h b/katomic/atom.h
new file mode 100644
index 00000000..19d9b087
--- /dev/null
+++ b/katomic/atom.h
@@ -0,0 +1,35 @@
+#ifndef ATOM_H
+#define ATOM_H
+
+#define MAX_CONNS_PER_ATOM 8
+
+class atom {
+ public:
+    char obj;
+    char conn[MAX_CONNS_PER_ATOM + 1];
+
+    bool operator==(const atom& rhs) const { return (rhs.obj == obj && !strcmp(rhs.conn,conn)); }
+    bool isEmpty() const { return (obj == 0 || obj == '.'); }
+};
+
+inline char int2atom(int i) { 
+    if (!i)
+	return '.';
+    if (i == 254)
+	return '#';
+    if (i <= 9) 
+	return i + '0';
+    return i + 'a' - 10;
+}
+
+inline int atom2int(char ch) {
+    if (ch == '.' || ch == 0)
+	return 0;
+    if (ch == '#')
+	return 254;
+    if (ch >= '0' && ch <= '9')
+	return ch - '0';
+    return ch - 'a' + 10;
+}
+
+#endif