bootstrap projectHEADmaster

Signed-off-by: Johnny Richard <johnny@johnnyrichard.com>

1 files changed, 60 insertions, 0 deletions

diff --git a/include/obe/array.h b/include/obe/array.h
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--- /dev/null
+++ b/include/obe/array.h
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+/*
+ * Copyright (C) 2025 Johnny Richard <johnny@johnnyrichard.com>
+ *
+ * SPDX-License-Identifier: LGPL-3.0-or-later
+ *
+ * This file is part of obe.
+ *
+ * obe is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+ *
+ * obe is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with obe. If not, see <https://www.gnu.org/licenses/>.
+ */
+#ifndef OBE_ARRAY_H
+#define OBE_ARRAY_H
+#include <obe/arena.h>
+#include <stddef.h>
+
+#define OBE_ARRAY_INITIAL_CAPACITY 4
+
+#define obe_array(arena, T) (T*)obe_array_new((arena), sizeof(T))
+
+#define obe_array_append(arr, item)                                            \
+    do {                                                                       \
+        obe_array_header_t* h = obe_array_get_header(arr);                     \
+        if (h->capacity < h->length + 1) {                                     \
+            arr = obe_array_grow(arr);                                         \
+            h = obe_array_get_header(arr);                                     \
+        }                                                                      \
+        arr[h->length++] = item;                                               \
+    } while (0)
+
+typedef struct obe_array_header
+{
+    obe_arena_t* arena;
+    size_t capacity;
+    size_t item_size;
+    size_t length;
+} obe_array_header_t;
+
+void*
+obe_array_new(obe_arena_t* arena, size_t item_size);
+
+obe_array_header_t*
+obe_array_get_header(void* arr);
+
+void*
+obe_array_grow(void* arr);
+
+size_t
+obe_array_length(void* arr);
+
+#endif /* OBE_ARRAY_H */