1 files changed, 55 insertions, 0 deletions
diff --git a/ndarray.h b/ndarray.h
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+++ b/ndarray.h
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+/*
+ * N-dimensional strided array
+ * Copyright 2018 Anton Khirnov <anton@khirnov.net>
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef MG2D_NDARRAY_H
+#define MG2D_NDARRAY_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+typedef struct Slice {
+    ptrdiff_t start;
+    ptrdiff_t end;
+    size_t    step;
+} Slice;
+
+#define SLICE(start, end, step) ((Slice){ start, end, step })
+#define SLICE_NULL ((Slice){ PTRDIFF_MAX })
+
+typedef struct NDArrayInternal NDArrayInternal;
+
+typedef struct NDArray {
+    NDArrayInternal *priv;
+
+    unsigned int     dims;
+
+    double          *data;
+    const size_t    *shape;
+    const ptrdiff_t *stride;
+} NDArray;
+
+#define NDARRAY_ALLOC_ZERO (1 << 0)
+
+int mg2di_ndarray_alloc(NDArray **result, unsigned int dims,
+                        const size_t * const size, unsigned int flags);
+void mg2di_ndarray_free(NDArray **a);
+
+int mg2di_ndarray_slice(NDArray **result, NDArray *src,
+                        const Slice * const slice);
+
+#endif // MG2D_ARRAY_H