* data/lalr1.cc: When displaying a line number, be sure to make it

[bison.git] / data / lalr1.cc

diff --git a/data/lalr1.cc b/data/lalr1.cc
index 214adb27aca07381a4bd1f85c968ae325812b2e5..148642203e3212137314e6c1edd443b6753728e9 100644 (file)
--- a/data/lalr1.cc
+++ b/data/lalr1.cc
@@ -429,8 +429,11 @@ yy::]b4_parser_class_name[::parse ()
 #if YYDEBUG
   if (debug_)
     {
+      // Short files will use "unsigned char" for line numbers,
+      // in which case they will be output as character litterals
+      // by "<<".
       YYCDEBUG << "Reducing via rule " << n_ - 1
-            << " (line " << rline_[n_] << "), ";
+               << " (line " << static_cast <unsigned> (rline_[n_]) << "), ";
       for (]b4_int_type_for([b4_prhs])[ i = prhs_[n_];
           0 <= rhs_[i]; ++i)
        YYCDEBUG << name_[rhs_[i]] << ' ';