Move everything out of src folder

cmc/cor/hashtable.h

@@ -0,0 +1,110 @@
+/**
+ * Copyright (c) 2019 Leonardo Vencovsky
+ *
+ * This file is part of the C Macro Collections Library.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+/**
+ * hashtable.h
+ *
+ * Creation Date: 17/03/2020
+ *
+ * Authors:
+ * Leonardo Vencovsky (https://github.com/LeoVen)
+ *
+ */
+
+/**
+ * Things commonly used by hashtable-based collections.
+ */
+
+#ifndef CMC_COR_HASHTABLE_H
+#define CMC_COR_HASHTABLE_H
+
+#include "core.h"
+
+/**
+ * CMC_ENTRY_DELETED
+ *
+ * Defines a pointer to an entry that has been deleted
+ */
+#define CMC_ENTRY_DELETED ((void *)1)
+
+/**
+ * enum cmc_entry_state
+ *
+ * Defines the three possible states for a node on a flat hashtable.
+ */
+enum cmc_entry_state
+{
+    CMC_ES_DELETED = -1,
+    CMC_ES_EMPTY = 0,
+    CMC_ES_FILLED = 1
+};
+
+/**
+ * static const size_t cmc_hashtable_primes[59]
+ *
+ * Prime numbers used to define a capacity for the hashtables for better
+ * hashing.
+ */
+// clang-format off
+static const size_t cmc_hashtable_primes[] = {
+    /* < 1e3 */
+    53, 97, 191, 383, 769,
+    /* < 1e4 */
+    1531, 3067, 6143,
+    /* < 1e5 */
+    12289, 24571, 49157, 98299,
+    /* < 1e6 */
+    196613, 393209, 786431,
+    /* < 1e7 */
+    1572869, 3145721, 6291449,
+    /* < 1e8 */
+    12582917, 25165813, 50331653,
+    /* < 1e9 */
+    100663291, 201326611, 402653189, 805306357,
+    /* < 1e10 */
+    1610612741, 3221225473, 6442450939,
+    /* < 1e11 */
+    12884901893, 25769803799, 51539607551,
+    /* < 1e12 */
+    103079215111, 206158430209, 412316860441, 824633720831,
+    /* < 1e13 */
+    1649267441651, 3298534883309, 6597069766657,
+    /* < 1e14 */
+    13194139533299, 26388279066623, 52776558133303,
+    /* < 1e15 */
+    105553116266489, 211106232532969, 422212465066001, 844424930131963,
+    /* < 1e16 */
+    1688849860263953, 3377699720527861, 6755399441055731,
+    /* < 1e17 */
+    13510798882111483, 27021597764222939, 54043195528445957,
+    /* < 1e18 */
+    108086391056891903, 216172782113783773, 432345564227567621, 864691128455135207,
+    /* < 1e19 */
+    1729382256910270481, 3458764513820540933, 6917529027641081903,
+    /* < 1e20 */
+    13835058055282163729llu,
+};
+// clang-format on
+
+#endif /* CMC_COR_HASHTABLE_H */