ncurses 6.0 - patch 20170204

[ncurses.git] / include / tic.h

diff --git a/include/tic.h b/include/tic.h
index 7c90065ccaf29dc585d095dfa8c5a64d5954dc00..fb713afdd280df31b36af150b0c1604bafcfe0ed 100644 (file)
--- a/include/tic.h
+++ b/include/tic.h
@@ -1,5 +1,5 @@
 /****************************************************************************
- * Copyright (c) 1998-2011,2012 Free Software Foundation, Inc.              *
+ * Copyright (c) 1998-2012,2017 Free Software Foundation, Inc.              *
  *                                                                          *
  * Permission is hereby granted, free of charge, to any person obtaining a  *
  * copy of this software and associated documentation files (the            *
@@ -33,7 +33,7 @@
  ****************************************************************************/
 
 /*
- * $Id: tic.h,v 1.68 2012/02/18 20:09:19 tom Exp $
+ * $Id: tic.h,v 1.70 2017/02/04 01:48:53 tom Exp $
  *     tic.h - Global variables and structures for the terminfo
  *                     compiler.
  */
@@ -86,6 +86,8 @@ extern "C" {
 
 #define IS_TIC_MAGIC(p)        (LOW_MSB(p) == MAGIC)
 
+#define quick_prefix(s) (!strncmp((s), "b64:", 4) || !strncmp((s), "hex:", 4))
+
 /*
  * The "maximum" here is misleading; XSI guarantees minimum values, which a
  * given implementation may exceed.
@@ -224,6 +226,12 @@ extern NCURSES_EXPORT(const struct alias *) _nc_get_alias_table (bool);
 
 #define NOTFOUND       ((struct name_table_entry *) 0)
 
+/*
+ * The casts are required for correct sign-propagation with systems such as
+ * AIX, IRIX64, Solaris which default to unsigned characters.  The C standard
+ * leaves this detail unspecified.
+ */
+
 /* out-of-band values for representing absent capabilities */
 #define ABSENT_BOOLEAN         ((signed char)-1)       /* 255 */
 #define ABSENT_NUMERIC         (-1)