separate non-Lua part of matrix code to a dedicated dir

1 files changed, 19 insertions, 0 deletions

diff --git a/nerv/lib/matrix/matrix.h b/nerv/lib/matrix/matrix.h
new file mode 100644
index 0000000..cbf32c2
--- /dev/null
+++ b/nerv/lib/matrix/matrix.h
@@ -0,0 +1,19 @@
+#ifndef NERV_GENERIC_MATRIX_H
+#define NERV_GENERIC_MATRIX_H
+
+#include <stddef.h>
+
+typedef struct Matrix {
+    size_t stride;              /* size of a row */
+    long ncol, nrow, nmax;    /* dimension of the matrix */
+    union {
+        float *f;
+        double *d;
+        long *i;
+    } data;                   /* pointer to actual storage */
+    long *data_ref;
+} Matrix;
+
+#define MATRIX_ROW_PTR(self, row) \
+    (MATRIX_ELEM *)((char *)MATRIX_ELEM_PTR(self) + (row) * (self)->stride)
+#endif