Codacy/Cppcheck cleanups.

src/V3AstNodes.cpp

@@ -290,6 +290,7 @@ string AstVar::vlArgType(bool named, bool forReturn, bool forFunc) const {
         if (mayparen) { oname = " ("+oname+")"; mayparen = false; }
         oarray += "["+cvtToStr(widthWords())+"]";
     }
+    if (mayparen) { }
     return otype+oname+oarray;
 }
 

src/V3File.cpp

@@ -223,7 +223,7 @@ inline bool V3FileDependImp::checkTimes(const string& filename, const string& cm
         return false;
     }
     {
-        string ignore = V3Os::getline(*ifp);
+        string ignore = V3Os::getline(*ifp);  if (ignore.empty()) { /*used*/ }
     }
     {
         char   chkDir;   *ifp>>chkDir;

src/V3Number.cpp

@@ -355,7 +355,7 @@ V3Number& V3Number::setLong(uint32_t value) {
 V3Number& V3Number::setLongS(vlsint32_t value) {
     for (int i=0; i<words(); i++) m_value[i]=m_valueX[i] = 0;
     union { uint32_t u; vlsint32_t s; } u;
-    u.s = value;
+    u.s = value; if (u.s) { }
     m_value[0] = u.u;
     opCleanThis();
     return *this;
@@ -366,7 +366,7 @@ V3Number& V3Number::setDouble(double value) {
     }
     m_double = true;
     union { double d; uint32_t u[2]; } u;
-    u.d = value;
+    u.d = value; if (u.d) { }
     for (int i=2; i<words(); i++) m_value[i]=m_valueX[i] = 0;
     m_value[0] = u.u[0]; m_value[1] = u.u[1];
     return *this;

src/V3Partition.cpp

@@ -1388,7 +1388,7 @@ private:
             donorp = fromp;
             recipientp = top;
         }
-        fromp = top = NULL;  // Use donorp and recipientp now instead
+        VL_DANGLING(fromp); VL_DANGLING(top);  // Use donorp and recipientp now instead
 
         // Recursively update forward and reverse CP numbers.
         //