Fix issue with implicit conversion (value_proxy to rational) uncovere…

…d by GCC 8

include/bmc/braille/semantic_analysis/value_disambiguation.hpp

@@ -130,7 +130,7 @@ class value_proxy
 
   value_proxy(ast::simile &simile, rational const& simile_duration)
   : type{ptr_type::simile}, simile_ptr{&simile}
-  , duration{simile_duration * simile.count}
+  , duration{simile_duration * int(simile.count)}
   { BOOST_ASSERT(simile_ptr->duration == zero); }
 
   void make_beam_begin()
@@ -174,7 +174,10 @@ duration(std::vector<value_proxy> const &values)
   return values.empty()
          ? zero
          : std::accumulate(std::next(std::begin(values)), std::end(values),
-                           static_cast<rational>(values.front()));
+                           static_cast<rational>(values.front()),
+			   [](rational const &a, value_proxy const &b) {
+			     return a + rational(b);
+			   });
 }
 
 struct global_state

lib/lilypond.cpp

@@ -414,7 +414,7 @@ generator::operator() (braille::ast::moving_note const &chord)
   (*this)(chord.base);
   os << "}\\\\{";
   // @todo Account for dotted intervals.
-  rational const moving_type(chord.base.as_rational() / chord.intervals.size());
+  rational const moving_type(chord.base.as_rational() / int(chord.intervals.size()));
   for (braille::ast::interval const& interval: chord.intervals) {
     os << " ";
     ly_pitch_step(interval.step);

lib/musicxml.cpp

@@ -437,11 +437,11 @@ class make_measures_for_staff_visitor : public boost::static_visitor<void> {
     for (auto &&interval: moving_note.intervals) {
       ::musicxml::note xml_note {
         pitch(interval),
-        duration(moving_note.base.as_rational() / moving_note.intervals.size(),
+        duration(moving_note.base.as_rational() / int(moving_note.intervals.size()),
                  divisions)
       };
 
-      xml_note.type(note_type(moving_note.base.get_type() / moving_note.intervals.size()));
+      xml_note.type(note_type(moving_note.base.get_type() / int(moving_note.intervals.size())));
       xml_note.dot(dots(moving_note.base));
       if (interval.acc) xml_note.accidental(accidental(*interval.acc));
       xml_note.staff(staff_number);

lib/value_disambiguation.cpp

@@ -266,7 +266,10 @@ class notegroup: public boost::static_visitor<void>
   {
     BOOST_ASSERT(stack_begin != stack_end);
     return std::accumulate(std::next(stack_begin), stack_end,
-                           static_cast<rational>(*stack_begin));
+                           static_cast<rational>(*stack_begin),
+                           [](rational const &a, value_proxy const &b) {
+                             return a + rational(b);
+                           });
   }
 
   tuplet_info const &tuplet_state() const { return tuplet; }
@@ -505,7 +508,7 @@ class partial_voice_interpreter
             state.time_signature != 1 && maybe_whole_measure_rest(*iterator)) {
           *stack_end = value_proxy(boost::get<ast::rest>(*iterator), state.time_signature);
           recurse( std::next(iterator), end, stack_begin, std::next(stack_end)
-                 , zero, position + state.time_signature, tuplet);
+		   , zero, position + rational(state.time_signature), tuplet);
         }
       }
     }
@@ -589,7 +592,7 @@ class large_and_small_visitor : public boost::static_visitor<bool>
     if (!is_grace(value)) {
       value_proxy *const next = proxy + 1;
       if (fast_leq(*new(proxy)value_proxy(value, large_value, factor), max_duration)) {
-        rational const next_position(position + *proxy);
+        rational const next_position(position + rational(*proxy));
         // If this is a tuplet end, only accept it if its position makes sense.
         if (!dyadic_next_position || is_dyadic(next_position)) {
           if (std::distance(rest, end) >= 10 && state.threads < max_threads) {
@@ -604,25 +607,25 @@ class large_and_small_visitor : public boost::static_visitor<bool>
             new_proxy->set_tuplet_info(tuplet_begin, tuplet_end);
             future = std::async(std::launch::async, [&]() {
               interpreter.recurse( rest, end, new_stack.get(), new_proxy + 1
-                                 , max_duration - *new_proxy, next_position
+				 , max_duration - rational(*new_proxy), next_position
                                  , tuplet
                                  );
               state.threads--;
             });
           } else {
             proxy->set_tuplet_info(tuplet_begin, tuplet_end);
             interpreter.recurse( rest, end, stack_begin, next
-                               , max_duration - *proxy, next_position, tuplet
+			       , max_duration - rational(*proxy), next_position, tuplet
                                );
           }
         }
       }
       if (fast_leq(*new(proxy)value_proxy(value, small_value, factor), max_duration)) {
-        rational const next_position(position + *proxy);
+        rational const next_position(position + rational(*proxy));
         if (!dyadic_next_position || is_dyadic(next_position)) {
           proxy->set_tuplet_info(tuplet_begin, tuplet_end);
           interpreter.recurse( rest, end, stack_begin, next
-                             , max_duration - *proxy, next_position, tuplet
+			     , max_duration - rational(*proxy), next_position, tuplet
                              );
         }
       }
@@ -635,8 +638,7 @@ class large_and_small_visitor : public boost::static_visitor<bool>
   {
     if (!position) { // full measure simile
       BOOST_ASSERT(static_cast<bool>(interpreter.last_measure_duration()));
-      if (*new(proxy)value_proxy
-          (simile, interpreter.last_measure_duration()) > rational(0) &&
+      if (rational(*new(proxy)value_proxy(simile, interpreter.last_measure_duration())) > rational(0) &&
           fast_leq(static_cast<rational>(*proxy) / rational::int_type(simile.count), max_duration)) {
         rational const duration(static_cast<rational>(*proxy) / rational::int_type(simile.count));
         interpreter.recurse( rest, end, stack_begin, proxy + 1
@@ -666,7 +668,7 @@ class large_and_small_visitor : public boost::static_visitor<bool>
             tuplet.back().ttl = count_rhythmic(rest, tuplet_end(rest, end, tuplet.back().number, true));
           }
           interpreter.recurse( rest, end, stack_begin, proxy + 1
-                             , max_duration - *proxy, position + *proxy
+			       , max_duration - rational(*proxy), position + rational(*proxy)
                              , tuplet
                              );
         }