Fix some bugs related to nested scopes

include/vcppd/scope.h

@@ -11,6 +11,7 @@ namespace vcppd
 template <typename T> class Scope
 {
   friend T;
+  friend Scope<Scope>;
 
 public:
   Scope(const Scope&) = delete;
@@ -18,6 +19,7 @@ public:
 
   Scope<Scope> scope(const std::string& name)
   {
+    parent.scope(name);
     return Scope<Scope>(name, *this);
   }
 

src/vcd.cpp

@@ -27,7 +27,7 @@ void Vcd::tick()
     for (int i = 0; i < entry.size; i++)
     {
       uint8_t byte;
-      memcpy(&byte, static_cast<const uint8_t*>(entry.ref), 1);
+      memcpy(&byte, static_cast<const uint8_t*>(entry.ref) + i, 1);
       stream << std::format("{0:b}", byte);
     }
     stream << " " << name << std::endl;

test/test.cpp

@@ -4,11 +4,15 @@ int main(int argc, char** argv)
 {
   uint8_t eae = 0;
   uint8_t eae2 = 0;
+  uint16_t eae3 = 1;
 
   auto vcd = vcppd::Builder(std::cout)
                .scope("TOP")
                .trace("eae", eae)
                .trace("eae2", eae2)
+               .scope("MIDDLE")
+               .trace("eae3", eae3)
+               .unscope()
                .unscope()
                .build();
   for (int i = 0; i < 10; i++)
@@ -16,6 +20,7 @@ int main(int argc, char** argv)
     vcd.tick();
     eae += 1;
     eae2 += 2;
+    eae3 *= 2;
   }
 
   return 0;