From 22f703cab05b7cd368f4de9e03991b7664dc5022 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?J=C3=B6rg=20Frings-F=C3=BCrst?= <debian@jff-webhosting.net>
Date: Mon, 1 Sep 2014 13:56:46 +0200
Subject: Initial import of argyll version 1.5.1-8

---
 h/xlist.h | 56 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 56 insertions(+)
 create mode 100644 h/xlist.h

(limited to 'h/xlist.h')

diff --git a/h/xlist.h b/h/xlist.h
new file mode 100644
index 0000000..dc03019
--- /dev/null
+++ b/h/xlist.h
@@ -0,0 +1,56 @@
+/* A set of expandable list utilities, implimented as macros. */
+/* Copyright 2006 Graeme W. Gill */
+
+#ifndef _XLIST_H_
+
+/* An expanding list structure */
+#define XLIST(objtype, name)								\
+struct {													\
+	int no;					/* Number of items in list */	\
+	int _no;				/* Allocated size of list */	\
+	int objsz;				/* Size of object */			\
+	objtype  *list;			/* list */						\
+} name;
+
+/* Initialize the list */
+#define XLIST_INIT(objtype, xlp) 		\
+	((xlp)->no = (xlp)->_no = 0,		\
+	 (xlp)->objsz = sizeof(objtype),	\
+	 (xlp)->list = NULL					\
+	)
+
+/* test if the list is empty */
+#define IS_XLIST_EMPTY(xlp) \
+	((xlp)->no == 0)
+
+/* Return the number of items in the list */
+#define XLIST_NO(xlp) \
+	((xlp)->no)
+
+/* Return the n'th item in the list */
+#define XLIST_ITEM(xlp, n) \
+	((xlp)->list[n])
+
+/* Add an item to the end of a list */
+/* We call error() if malloc failes */
+#define XLIST_ADD(xlp, obj) \
+	{																			\
+		if ((xlp)->_no <= 0) {													\
+			(xlp)->_no = 10;													\
+			if (((xlp)->list = malloc((xlp)->objsz * (xlp)->_no)) == NULL)		\
+				error("XLIST malloc failed on %d items of size %d", (xlp)->objsz, (xlp)->_no);		\
+		} else if ((xlp)->_no <= (xlp)->no) {									\
+			(xlp)->_no *= 2;		\
+			if (((xlp)->list = realloc((xlp)->list, (xlp)->objsz * (xlp)->_no)) == NULL) \
+				error("XLIST realloc failed on %d items of size %d", (xlp)->objsz, (xlp)->_no);		\
+		}																		\
+		(xlp)->list[(xlp)->no++] = (obj);										\
+	}
+	
+/* Free up the list */
+#define XLIST_FREE(xlp) \
+		{ if ((xlp)->_no > 0) free((xlp)->list); }
+
+#define _XLIST_H_
+#endif /* _XLIST_H_ */
+
-- 
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