Various floating point / initial value bug fixes from Christian Mayer.

src/Cockpit/radiostack.cxx

@@ -83,13 +83,19 @@ FGRadioStack::FGRadioStack() :
     lat_node(fgGetNode("/position/latitude-deg", true)),
     alt_node(fgGetNode("/position/altitude-ft", true)),
     need_update(true),
+    nav1_freq(0.0),
+    nav1_alt_freq(0.0),
     nav1_radial(0.0),
+    nav2_freq(0.0),
+    nav2_alt_freq(0.0),
     nav2_radial(0.0),
     dme_freq(0.0),
     dme_dist(0.0),
     dme_prev_dist(0.0),
     dme_spd(0.0),
-    dme_ete(0.0)
+    dme_ete(0.0),
+    adf_freq(0.0),
+    adf_alt_freq(0.0)
 {
     SGPath path( globals->get_fg_root() );
     SGPath term = path;

src/Main/main.cxx

@@ -113,8 +113,8 @@
 // Should already be inlcluded by gl.h if needed by your platform so
 // we shouldn't include this here.
 // #include <GL/glext.h>
-PFNGLPOINTPARAMETERFEXTPROC glPointParameterfEXT = 0;
+// PFNGLPOINTPARAMETERFEXTPROC glPointParameterfEXT = 0;
-PFNGLPOINTPARAMETERFVEXTPROC glPointParameterfvEXT = 0;
+// PFNGLPOINTPARAMETERFVEXTPROC glPointParameterfvEXT = 0;
 float default_attenuation[3] = {1.0, 0.0, 0.0};
 //Required for using GL_extensions
 void fgLoadDCS (void);
@@ -1866,6 +1866,12 @@ int mainLoop( int argc, char **argv ) {
 
 // Main entry point; catch any exceptions that have made it this far.
 int main ( int argc, char **argv ) {
+
+#ifdef _MSC_VER
+    // Christian, we should document what this does
+    _control87( _EM_INEXACT, _MCW_EM );
+#endif
+
     // FIXME: add other, more specific
     // exceptions.
     try {
@@ -1876,6 +1882,8 @@ int main ( int argc, char **argv ) {
                << "\n (received from " << t.getOrigin() << ')');
         exit(1);
     }
+
+    return 0;
 }
 
 
@@ -1966,7 +1974,7 @@ void fgLoadDCS(void) {
 						SG_LOG( SG_TERRAIN, SG_ALERT, "Cannot open file: " << modelpath.str() );
 					} else {
 						while ( ! in1.eof() ) {
-							in1 >> skipws;
+                                                        in1 >> ::skipws;
 							if ( in1.get( c ) && c == '#' ) { 
 								in1 >> skipeol;
 							} else { 

src/Main/viewer.cxx

@@ -29,6 +29,7 @@
 #endif
 
 #include <simgear/debug/logstream.hxx>
+#include <simgear/constants.h>
 
 #include "viewer.hxx"
 
@@ -40,6 +41,10 @@ FGViewer::FGViewer( void ):
     goal_view_offset(0.0)
 {
     sgSetVec3( pilot_offset, 0.0, 0.0, 0.0 );
+    sgdZeroVec3(geod_view_pos);
+    sgdZeroVec3(abs_view_pos);
+    sea_level_radius = SG_EQUATORIAL_RADIUS_M; 
+    //a reasonable guess for init, so that the math doesn't blow up
 }
 
 

src/Navaids/ils.hxx

@@ -128,7 +128,12 @@ inline istream&
 operator >> ( istream& in, FGILS& i )
 {
     double f;
-    in >> i.ilstype >> i.ilstypename >> i.aptcode >> i.rwyno 
+    in >> i.ilstype;
+    
+    if ( i.ilstype == '[' )
+          return in;
+
+    in >> i.ilstypename >> i.aptcode >> i.rwyno 
        >> f >> i.locident >> i.locheading >> i.loclat >> i.loclon
        >> i.gselev >> i.gsangle >> i.gslat >> i.gslon
        >> i.dmelat >> i.dmelon

src/Navaids/nav.hxx

@@ -111,7 +111,12 @@ operator >> ( istream& in, FGNav& n )
 	first_time = false;
     }
 
-    in >> n.type >> n.lat >> n.lon >> n.elev >> f >> n.range 
+    in >> n.type;
+    
+    if ( n.type == '[' )
+      return in >> skipeol;
+
+    in >> n.lat >> n.lon >> n.elev >> f >> n.range 
        >> c >> n.ident >> magvar_s;
 
     n.freq = (int)(f*100.0 + 0.5);

src/Scenery/hitlist.cxx

@@ -199,6 +199,13 @@ int FGHitList::IntersectLeaf( ssgLeaf *leaf, sgdMat4 m,
 	sgdXformPnt3( tri[1], leaf->getVertex( i2 ), m );
 	sgdXformPnt3( tri[2], leaf->getVertex( i3 ), m );
 
+        //avoid division by zero when two points are the same
+        if ( sgdEqualVec3(tri[0], tri[1]) ||
+             sgdEqualVec3(tri[1], tri[2]) ||
+             sgdEqualVec3(tri[2], tri[0]) ) {
+            continue;
+        }
+
 	sgdVec4 plane;
 	sgdMakePlane( plane, tri[0], tri[1], tri[2] );