refactor; also notices intermittent failures

Circuit.cpp

@@ -17,7 +17,7 @@ Circuit::Circuit(Segment* extendFrom, Segment* VSS, Segment* VCC) : VSS(VSS), VC
  * This happens recursively, but we don't recurse past ground or voltage supply.
  */
 void Circuit::extend(Segment* extendFrom) {
-    const std::pair < std::set<Segment*>::iterator, bool> ret = this->segs.insert(extendFrom);
+    auto ret = this->segs.insert(extendFrom);
     if (!ret.second) {
         return;
     }
@@ -34,8 +34,7 @@ void Circuit::extend(Segment* extendFrom) {
      * to OFF, so at the time of the very first recalcAll call, *no* other
      * segments will be added here.
      */
-    for (std::set<Trans*>::const_iterator iTrn = extendFrom->c1c2s.begin(); iTrn != extendFrom->c1c2s.end(); ++iTrn) {
-        const Trans * t(*iTrn);
+    for (auto t : extendFrom->c1c2s) {
         if (t->on) {
             if (t->c1 == extendFrom) {
                 extend(t->c2);
@@ -62,8 +61,7 @@ bool Circuit::getValue() {
 
 
 
-    for (std::set<Segment*>::const_iterator iSeg = this->segs.begin(); iSeg != this->segs.end(); ++iSeg) {
-        Segment * s(*iSeg);
+    for (auto s : this->segs) {
         if (s->pullup) {
             return true;
         }

SegmentCache.h

@@ -28,7 +28,7 @@ public:
 
     std::set<Segment*> all() {
         std::set<Segment*> s;
-        for (auto i : cache) {
+        for (auto i : this->cache) {
             s.insert(i.second.get());
         }
         return s;

Trace.cpp

@@ -10,15 +10,19 @@
 #include <iostream>
 #include <iomanip>
 
-static void pHex(const unsigned char x) {
-    std::cout << std::setw(2) << std::setfill('0') << std::hex << (unsigned long) x << std::dec;
+static void pHex(const unsigned long x, const int width) {
+    std::cout << std::setw(width) << std::setfill('0') << std::hex << x << std::dec;
+}
+
+static void pHexb(const unsigned char x) {
+    pHex(x,2);
 }
 
 static void pHexw(const unsigned short x) {
-    std::cout << std::setw(4) << std::setfill('0') << std::hex << (unsigned long) x << std::dec;
+    pHex(x,4);
 }
 
-void Trace::dumpSegments() {
+void Trace::dumpSegments() const {
 //    for (int i = 0; i < segs.size(); ++i) {
 //        seg& s = segs[i];
 //        if (s.pullup) {
@@ -37,13 +41,13 @@ void Trace::dumpSegments() {
 //    std::cout << std::endl;
 }
 
-void Trace::dumpRegisters() {
+void Trace::dumpRegisters() const {
     std::cout << "A";
-    pHex(s.rA());
+    pHexb(s.rA());
     std::cout << " X";
-    pHex(s.rX());
+    pHexb(s.rX());
     std::cout << " Y";
-    pHex(s.rY());
+    pHexb(s.rY());
     std::cout << " ";
     std::cout << (s.c->P7->on ? "N" : "n");
     std::cout << (s.c->P6->on ? "V" : "v");
@@ -54,7 +58,7 @@ void Trace::dumpRegisters() {
     std::cout << (s.c->P1->on ? "Z" : "z");
     std::cout << (s.c->P0->on ? "C" : "c");
     std::cout << " S";
-    pHex(s.rS());
+    pHexb(s.rS());
     std::cout << " PC";
     pHexw(s.rPC());
     if (s.c->CLK1OUT->on) {
@@ -72,7 +76,7 @@ void Trace::dumpRegisters() {
         std::cout << "  PH-  ";
     }
     std::cout << " DB";
-    pHex(s.rData());
+    pHexb(s.rData());
     std::cout << " AB";
     pHexw(s.rAddr());
     std::cout << std::endl;

Trace.h

@@ -15,12 +15,12 @@ public:
     Trace(const SegmentCache& s) : s(s) {}
     virtual ~Trace() {}
 
-    void dumpSegments();
-    void dumpRegisters();
+    void dumpSegments() const;
+    void dumpRegisters() const;
 
 private:
-    Trace(const Trace&);
-    Trace& operator=(const Trace&);
+    Trace(const Trace&) = delete;
+    Trace& operator=(const Trace&) = delete;
 
     const SegmentCache& s;
 };