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diff --git a/include/moretypes.h b/include/moretypes.h
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+++ b/include/moretypes.h
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+/* moretypes.h: common types beyond types.h.
+
+Copyright (C) 1993 Free Software Foundation, Inc.
+
+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 2, 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, write to the Free Software
+Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifndef MORETYPES_H
+#define MORETYPES_H
+
+/* We use `real' for our floating-point variables.  */
+typedef double real;
+
+/* A character code.  Perhaps someday we will allow for 16-bit
+   character codes, but for now we are restricted to 256 characters per
+   font (like TeX and PostScript).  */
+typedef unsigned char charcode_type;
+
+
+/* Used in file formats.  */
+typedef unsigned char one_byte;
+typedef signed char signed_byte;
+typedef unsigned short two_bytes;
+typedef short signed_2_bytes;
+typedef unsigned int four_bytes;
+typedef int signed_4_bytes;
+typedef int byte_count_type;
+
+/* These are intended to be used for output in file formats where a
+   ``byte'' is defined to be eight bits, regardless of the hardware.  */
+#define ONE_BYTE_BIG  (1 << 8)
+#define TWO_BYTES_BIG  (1 << 16)
+#define THREE_BYTES_BIG (1 << 24)
+
+
+/* Complex numbers.  */
+typedef struct
+{
+  real real;
+  real imag;
+} complex;
+typedef enum { first_complex_part, second_complex_part} complex_part_type;
+typedef enum { polar_rep, rectangular_rep} complex_rep_type;
+
+
+/* Dimensions of a rectangle.  */
+typedef struct
+{
+  unsigned height, width;
+} dimensions_type;
+
+#define DIMENSIONS_HEIGHT(d) ((d).height)
+#define DIMENSIONS_WIDTH(d) ((d).width)
+
+
+/* Cartesian points.  */
+typedef struct
+{
+  int x, y;
+} coordinate_type;
+
+typedef struct
+{
+  double x, y;
+} real_coordinate_type;
+
+#endif /* not MORETYPES_H */