build: avoid warnings about set-but-not-used variables

[bison.git] / src / complain.h

diff --git a/src/complain.h b/src/complain.h
index 89cdd91d3dcc80f62ba998007af803d64f707bd3..07d401cbb193385dff37ac428f6bf78f876baf5e 100644 (file)
--- a/src/complain.h
+++ b/src/complain.h
@@ -1,5 +1,7 @@
 /* Declaration for error-reporting function for Bison.
-   Copyright (C) 2000, 2001, 2002, 2006, 2009 Free Software Foundation, Inc.
+
+   Copyright (C) 2000-2002, 2006, 2009-2011 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
@@ -23,7 +25,15 @@
 extern "C" {
 # endif
 
-/** Informative messages, but we proceed.  */
+/** Record that a warning is about to be issued, and treat it as an
+    error if <tt>warnings_flag & warnings_error</tt>.  This is exported
+    only for the sake of Yacc-compatible conflict reports in conflicts.c.
+    All other warnings should be implemented in complain.c and should use
+    the normal warning format.  */
+void set_warning_issued (void);
+
+/** Informative messages, but we proceed.  Report iff
+    <tt>warnings_flag & warnings_other</tt>.  */
 
 void warn (char const *format, ...)
   __attribute__ ((__format__ (__printf__, 1, 2)));
@@ -31,6 +41,13 @@ void warn (char const *format, ...)
 void warn_at (location loc, char const *format, ...)
   __attribute__ ((__format__ (__printf__, 2, 3)));
 
+/* Generate a message aligned by an indent.
+   When *indent == 0, assign message's indent to *indent,
+   When *indent > 0, align the message by *indent value. */
+void warn_at_indent (location loc, unsigned *indent,
+                     char const *format, ...)
+  __attribute__ ((__format__ (__printf__, 3, 4)));
+
 /** An error, but we continue and die later.  */
 
 void complain (char const *format, ...)
@@ -39,12 +56,24 @@ void complain (char const *format, ...)
 void complain_at (location loc, char const *format, ...)
   __attribute__ ((__format__ (__printf__, 2, 3)));
 
+/* Generate a message aligned by an indent.
+   When *indent == 0, assign message's indent to *indent,
+   When *indent > 0, align the message by *indent value. */
+void complain_at_indent (location loc, unsigned *indent,
+                         char const *format, ...)
+  __attribute__ ((__format__ (__printf__, 3, 4)));
+
 /** An incompatibility with POSIX Yacc: mapped either to warn* or
     complain* depending on yacc_flag. */
 
 void yacc_at (location loc, char const *format, ...)
   __attribute__ ((__format__ (__printf__, 2, 3)));
 
+/** A midrule-value warning.  Report iff
+    <tt>warnings_flag & warnings_midrule_values</tt>.  */
+
+void midrule_value_at (location loc, char const *format, ...)
+  __attribute__ ((__format__ (__printf__, 2, 3)));
 
 /** A fatal error, causing immediate exit.  */