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authorKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
committerKarl Berry <karl@freefriends.org>2006-01-17 21:41:51 +0000
commit487ca4806cc046076293cf6cc5fbba0db282bac7 (patch)
tree847b412ab5158dd7bdd7ed7e5a4cc3fbca94be32 /Build/source/texk/seetexk/search.h
parenta3d3111bfe26b8e5f5bc6049dfb2a4ca2edc7881 (diff)
texk 1
git-svn-id: svn://tug.org/texlive/trunk@1485 c570f23f-e606-0410-a88d-b1316a301751
Diffstat (limited to 'Build/source/texk/seetexk/search.h')
-rw-r--r--Build/source/texk/seetexk/search.h37
1 files changed, 37 insertions, 0 deletions
diff --git a/Build/source/texk/seetexk/search.h b/Build/source/texk/seetexk/search.h
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+/*
+ * Copyright (c) 1987, 1989 University of Maryland
+ * Department of Computer Science. All rights reserved.
+ * Permission to copy for any purpose is hereby granted
+ * so long as this copyright notice remains intact.
+ */
+
+/* search structures and routines for 32-bit key, arbitrary data */
+
+struct search {
+ unsigned s_dsize; /* data object size (includes key size) */
+ unsigned s_space; /* space left (in terms of objects) */
+ unsigned s_n; /* number of objects in the table */
+ char *s_data; /* data area */
+};
+
+/* returns a pointer to the search table (for future search/installs) */
+struct search *SCreate(); /* create a search table */
+
+/* returns a pointer to the data object found or created */
+char *SSearch(); /* search for a data object */
+
+/* clears a search table (wipes out all entries) */
+#define SClear(s) ((s)->s_space += (s)->s_n, (s)->s_n = 0)
+
+/* the third argument to SSearch controls operation as follows: */
+#define S_LOOKUP 0x00 /* pseudo flag */
+#define S_CREATE 0x01 /* create object if not found */
+#define S_EXCL 0x02 /* complain if already exists */
+
+/* in addition, it is modified before return to hold status: */
+#define S_COLL 0x04 /* collision (occurs iff S_EXCL set) */
+#define S_FOUND 0x08 /* found (occurs iff existed already) */
+#define S_NEW 0x10 /* created (occurs iff S_CREATE && !S_EXCL) */
+#define S_ERROR 0x20 /* problem creating (out of memory) */
+
+void SEnumerate();