diff --git a/src/lib/path-array.hpp b/src/lib/path-array.hpp
index 6759e1455..37ac6a866 100644
--- a/src/lib/path-array.hpp
+++ b/src/lib/path-array.hpp
@@ -115,7 +115,7 @@ namespace lib {
               delete[] storage_;
           }
         
-        Extension()
+        Extension()  noexcept
           : storage_{nullptr}
           { }
         
@@ -132,7 +132,7 @@ namespace lib {
           : storage_{r.storage_? r.newCopy() : nullptr}
           { }
         
-        Extension (Extension&& rr)
+        Extension (Extension&& rr)  noexcept
           : storage_{nullptr}
           {
             if (rr.storage_)
@@ -153,7 +153,7 @@ namespace lib {
             return *this;
           }
         
-        Extension& operator= (Extension&& rr)
+        Extension& operator= (Extension&& rr)  noexcept
           {
             if (this != &rr)
               {
diff --git a/src/lib/symbol.hpp b/src/lib/symbol.hpp
index f796f50b7..f021d3d37 100644
--- a/src/lib/symbol.hpp
+++ b/src/lib/symbol.hpp
@@ -77,13 +77,14 @@ namespace lib {
        const char * str_;
        
     public:
-       Literal(); ///< empty string by default
+       /** empty string by default */
+       Literal()  noexcept;
        
-       Literal (const char* literal)
+       Literal (const char* literal) noexcept
          : str_(literal)
          { }
        
-       Literal (Literal const& o)
+       Literal (Literal const& o) noexcept
          : str_(o.str_)
          { }
        
@@ -100,7 +101,7 @@ namespace lib {
 
     protected:
        /** Assignment generally prohibited */
-       Literal& operator= (const char* newStr)
+       Literal& operator= (const char* newStr) noexcept
          {
            str_ = newStr;
            return *this;
@@ -163,7 +164,7 @@ namespace lib {
   extern const size_t STRING_MAX_RELEVANT;
   
   /** @note storage guaranteed to exist */
-  inline Literal::Literal() : str_(Symbol::EMPTY) { }
+  inline Literal::Literal() noexcept : str_(Symbol::EMPTY) { }
   
   
   /* ===== to be picked up by ADL ===== */
diff --git a/wiki/thinkPad.ichthyo.mm b/wiki/thinkPad.ichthyo.mm
index 151538bd0..55d4e9ee7 100644
--- a/wiki/thinkPad.ichthyo.mm
+++ b/wiki/thinkPad.ichthyo.mm
@@ -4579,7 +4579,7 @@
 <node CREATED="1509476126793" ID="ID_1463784807" MODIFIED="1509476133201" TEXT="ist mit dem Baum verwoben"/>
 <node CREATED="1509476133741" ID="ID_1273043633" MODIFIED="1509476148391" TEXT="der Baum ist aber Implementierungs-Detail"/>
 </node>
-<node CREATED="1509476154258" ID="ID_930376282" MODIFIED="1509476241774" TEXT="m&#xf6;gliche L&#xf6;sungen">
+<node CREATED="1509476154258" FOLDED="true" ID="ID_930376282" MODIFIED="1515206253551" TEXT="m&#xf6;gliche L&#xf6;sungen">
 <icon BUILTIN="idea"/>
 <node CREATED="1509476160585" ID="ID_171588117" MODIFIED="1509476184594" TEXT="Zustand opaque verpacken"/>
 <node CREATED="1509476185182" ID="ID_613038974" MODIFIED="1509476196153" TEXT="Callback &#xfc;ber den Baum transportieren"/>
@@ -7692,7 +7692,7 @@
 </node>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1510941646050" ID="ID_596422747" MODIFIED="1514292303458" TEXT="expandable ChildIter">
+<node COLOR="#338800" CREATED="1510941646050" FOLDED="true" ID="ID_596422747" MODIFIED="1515206250023" TEXT="expandable ChildIter">
 <linktarget COLOR="#283b63" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="66;49;" ID="Arrow_ID_1521598219" SOURCE="ID_1408571420" STARTARROW="Default" STARTINCLINATION="94;-19;"/>
 <linktarget COLOR="#786296" DESTINATION="ID_596422747" ENDARROW="Default" ENDINCLINATION="278;120;" ID="Arrow_ID_1919142695" SOURCE="ID_115330701" STARTARROW="None" STARTINCLINATION="952;148;"/>
 <icon BUILTIN="button_ok"/>
@@ -8311,9 +8311,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1510941577099" ID="ID_394904963" MODIFIED="1514330147280" TEXT="Implementierung">
+<node COLOR="#338800" CREATED="1510941577099" ID="ID_394904963" MODIFIED="1515206174458" TEXT="Implementierung">
 <linktarget COLOR="#653655" DESTINATION="ID_394904963" ENDARROW="Default" ENDINCLINATION="606;374;" ID="Arrow_ID_1674594671" SOURCE="ID_286375730" STARTARROW="None" STARTINCLINATION="863;77;"/>
-<icon BUILTIN="pencil"/>
+<icon BUILTIN="button_ok"/>
 <node CREATED="1510941687588" ID="ID_601914095" MODIFIED="1510941775002" TEXT="beispielhaft f&#xfc;r GenNode umsetzen">
 <icon BUILTIN="yes"/>
 </node>
@@ -8612,9 +8612,9 @@
 </node>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1514829169777" HGAP="32" ID="ID_331008637" MODIFIED="1515034466920" TEXT="Integration" VSHIFT="10">
-<icon BUILTIN="pencil"/>
-<node COLOR="#338800" CREATED="1514829220907" ID="ID_1488508113" MODIFIED="1515034463168" TEXT="zun&#xe4;chst Algo f&#xfc;r partielle Coverage bauen">
+<node COLOR="#338800" CREATED="1514829169777" HGAP="32" ID="ID_331008637" MODIFIED="1515206166911" TEXT="Integration" VSHIFT="10">
+<icon BUILTIN="button_ok"/>
+<node COLOR="#338800" CREATED="1514829220907" FOLDED="true" ID="ID_1488508113" MODIFIED="1515206164636" TEXT="zun&#xe4;chst Algo f&#xfc;r partielle Coverage bauen">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514829338427" ID="ID_623381151" MODIFIED="1515034463168" TEXT="Zustandstyp">
 <icon BUILTIN="button_ok"/>
@@ -8633,7 +8633,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node COLOR="#338800" CREATED="1514829412249" ID="ID_1641757769" MODIFIED="1515034463168" TEXT="Einbindung Resolution-State">
+<node COLOR="#338800" CREATED="1514829412249" FOLDED="true" ID="ID_1641757769" MODIFIED="1515206160460" TEXT="Einbindung Resolution-State">
 <icon BUILTIN="button_ok"/>
 <node COLOR="#338800" CREATED="1514829452692" ID="ID_1692090746" MODIFIED="1515034463169" TEXT="nested Class">
 <icon BUILTIN="button_ok"/>
@@ -8648,7 +8648,7 @@
 <icon BUILTIN="button_ok"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1514829238960" ID="ID_1556354374" MODIFIED="1515034520605" TEXT="Varianten definieren">
+<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1514829238960" FOLDED="true" ID="ID_1556354374" MODIFIED="1515206157924" TEXT="Varianten definieren">
 <arrowlink COLOR="#7e90a1" DESTINATION="ID_1992822141" ENDARROW="Default" ENDINCLINATION="0;56;" ID="Arrow_ID_26195276" STARTARROW="Default" STARTINCLINATION="-20;-69;"/>
 <icon BUILTIN="button_cancel"/>
 <node CREATED="1514942095070" ID="ID_815761690" MODIFIED="1515034463169" TEXT="default: ermitteln der maximalen partiellen Coverage">
@@ -8664,9 +8664,9 @@
 <font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 </node>
 </node>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1514848454621" ID="ID_472406160" MODIFIED="1515034463169" TEXT="std::swap f&#xfc;r UICoord">
-<icon BUILTIN="flag-yellow"/>
-<node CREATED="1514848818421" ID="ID_26529397" MODIFIED="1515034463169" TEXT="vermutlich nix zu tun">
+<node COLOR="#338800" CREATED="1514848454621" FOLDED="true" ID="ID_472406160" MODIFIED="1515206150653" TEXT="std::swap f&#xfc;r UICoord">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1514848818421" ID="ID_26529397" MODIFIED="1515206142953" TEXT="vermutlich (fast) nix zu tun">
 <richcontent TYPE="NOTE"><html>
   <head>
     
@@ -8684,7 +8684,18 @@
 </html>
 </richcontent>
 </node>
-<node CREATED="1514848861831" ID="ID_297570158" MODIFIED="1515034463169" TEXT="noexcept() bedenken"/>
+<node COLOR="#338800" CREATED="1514848861831" FOLDED="true" ID="ID_297570158" MODIFIED="1515206133192" TEXT="noexcept() bedenken">
+<icon BUILTIN="button_ok"/>
+<node CREATED="1515206011718" ID="ID_1572220372" MODIFIED="1515206130684" TEXT="std::Array hat impliziten move-ctor">
+<icon BUILTIN="idea"/>
+</node>
+<node COLOR="#338800" CREATED="1515206027308" ID="ID_1973328661" MODIFIED="1515206127344" TEXT="mu&#xdf; Konstruktor von lib::Literal noexcept machen">
+<icon BUILTIN="button_ok"/>
+</node>
+<node COLOR="#338800" CREATED="1515206107418" ID="ID_97679310" MODIFIED="1515206126419" TEXT="move-Ctors von Extension (f&#xfc;r PathArray) noexcept machen">
+<icon BUILTIN="button_ok"/>
+</node>
+</node>
 <node CREATED="1514848874005" ID="ID_751821458" MODIFIED="1515034463169" TEXT="PathArray: move effizienter als swap">
 <icon BUILTIN="messagebox_warning"/>
 </node>
@@ -8718,7 +8729,8 @@
 </node>
 <node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1510941766817" HGAP="13" ID="ID_1117346518" MODIFIED="1515037517012" TEXT="Testf&#xe4;lle" VSHIFT="29">
 <icon BUILTIN="pencil"/>
-<node BACKGROUND_COLOR="#eee5c3" COLOR="#990000" CREATED="1513477873206" ID="ID_939423021" MODIFIED="1513477891813" TEXT="definieren was abzudecken ist...">
+<node COLOR="#338800" CREATED="1513477873206" ID="ID_939423021" MODIFIED="1515206284163" TEXT="definieren was abzudecken ist...">
+<font ITALIC="true" NAME="SansSerif" SIZE="12"/>
 <icon BUILTIN="yes"/>
 </node>
 <node COLOR="#338800" CREATED="1513478153511" ID="ID_1826394146" MODIFIED="1514154134542" TEXT="bisherige ChildIter-Testf&#xe4;lle">