upstream tag

[1ts-debian.git] / zephyr / libdyn / dynP.h

diff --git a/zephyr/libdyn/dynP.h b/zephyr/libdyn/dynP.h
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+++ b/zephyr/libdyn/dynP.h
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+/*
+ * This file is part of libdyn.a, the C Dynamic Object library.  It
+ * contains the private header file.
+ *
+ * There are no restrictions on this code; however, if you make any
+ * changes, I request that you document them so that I do not get
+ * credit or blame for your modifications.
+ *
+ * Written by Barr3y Jaspan, Student Information Processing Board (SIPB)
+ * and MIT-Project Athena, 1989.
+ */
+
+
+/*
+ * dynP.h -- private header file included by source files for libdyn.a.
+ */
+
+#ifndef _DynP_h
+#define _DynP_h
+
+#include <sysdep.h>
+#include <dyn.h>
+
+/*
+ * Rep invariant:
+ * 1) el_size is the number of bytes per element in the object
+ * 2) num_el is the number of elements currently in the object.  It is
+ * one higher than the highest index at which an element lives.
+ * 3) size is the number of elements the object can hold without
+ * resizing.  num_el <= index.
+ * 4) inc is a multiple of the number of elements the object grows by
+ * each time it is reallocated.
+ */
+
+typedef struct _DynObject {
+     DynPtr    array;
+     int       el_size, num_el, size, inc;
+     char      debug, paranoid;
+} DynObjectRec;
+
+/* Internal functions */
+int _DynRealloc __P((DynObject obj, int num_incs));
+
+#define _DynResize(obj, req) \
+     ((obj)->size > (req) ? DYN_OK : \
+     (_DynRealloc((obj), (((req) - (obj)->size) / (obj)->inc) + 1)))
+
+#endif /* _DynP_h */
+/* DON'T ADD STUFF AFTER THIS #endif */