From 1d99401c0427a2a4faae651995736d569f8bbd5e Mon Sep 17 00:00:00 2001
From: ThorstenB <brehmt@gmail.com>
Date: Sun, 11 Nov 2012 17:22:42 +0100
Subject: [PATCH] Remove osg dependency for isNaN only.

---
 src/Instrumentation/gps.cxx      | 3 +--
 src/Model/modelmgr.cxx           | 4 +---
 src/MultiPlayer/multiplaymgr.cxx | 7 +++----
 src/Navaids/positioned.cxx       | 6 ++----
 src/Scripting/NasalSys.cxx       | 4 ++--
 src/Scripting/nasal-props.cxx    | 6 +++---
 6 files changed, 12 insertions(+), 18 deletions(-)

diff --git a/src/Instrumentation/gps.cxx b/src/Instrumentation/gps.cxx
index 6bc14228c..de071be0a 100644
--- a/src/Instrumentation/gps.cxx
+++ b/src/Instrumentation/gps.cxx
@@ -29,7 +29,6 @@
 #include <simgear/sg_inlines.h>
 #include <simgear/math/sg_geodesy.hxx>
 #include <simgear/structure/exception.hxx>
-#include <simgear/scene/util/OsgMath.hxx>
 
 using std::auto_ptr;
 using std::string;
@@ -74,7 +73,7 @@ SGGeod SGGeodProperty::get() const
     double lon = _lon->getDoubleValue(),
         lat = _lat->getDoubleValue();
         
-    if (osg::isNaN(lon) || osg::isNaN(lat)) {
+    if (SGMisc<double>::isNaN(lon) || SGMisc<double>::isNaN(lat)) {
       SG_LOG(SG_INSTR, SG_WARN, "read NaN for lon/lat:" << _lon->getPath() 
         << ", " << _lat->getPath());
       return SGGeod();
diff --git a/src/Model/modelmgr.cxx b/src/Model/modelmgr.cxx
index 0310274bd..449c3bedc 100644
--- a/src/Model/modelmgr.cxx
+++ b/src/Model/modelmgr.cxx
@@ -18,8 +18,6 @@
 #include <vector>
 #include <cstring>
 
-#include <osg/Math>
-
 #include <simgear/scene/model/placement.hxx>
 #include <simgear/scene/model/modellib.hxx>
 #include <simgear/structure/exception.hxx>
@@ -150,7 +148,7 @@ namespace
 {
 double testNan(double val) throw (sg_range_exception)
 {
-    if (osg::isNaN(val))
+    if (SGMisc<double>::isNaN(val))
         throw sg_range_exception("value is nan");
     return val;
 }
diff --git a/src/MultiPlayer/multiplaymgr.cxx b/src/MultiPlayer/multiplaymgr.cxx
index 91b4d43ab..7d6ce8b33 100644
--- a/src/MultiPlayer/multiplaymgr.cxx
+++ b/src/MultiPlayer/multiplaymgr.cxx
@@ -35,7 +35,6 @@
 #include <algorithm>
 #include <cstring>
 #include <errno.h>
-#include <osg/Math>             // isNaN
 
 #include <simgear/misc/stdint.hxx>
 #include <simgear/timing/timestamp.hxx>
@@ -302,7 +301,7 @@ namespace
         case props::DOUBLE:
           {
             float val = XDR_decode_float(*xdr);
-            if (osg::isNaN(val))
+            if (SGMisc<float>::isNaN(val))
               return false;
             xdr++;
             break;
@@ -611,8 +610,8 @@ FGMultiplayMgr::isSane(const FGExternalMotionData& motionInfo)
 {
     // check for corrupted data (NaNs)
     bool isCorrupted = false;
-    isCorrupted |= ((osg::isNaN(motionInfo.time           )) ||
-                    (osg::isNaN(motionInfo.lag            )) ||
+    isCorrupted |= ((SGMisc<double>::isNaN(motionInfo.time           )) ||
+                    (SGMisc<double>::isNaN(motionInfo.lag            )) ||
                     (osg::isNaN(motionInfo.orientation(3) )));
     for (unsigned i = 0; (i < 3)&&(!isCorrupted); ++i)
     {
diff --git a/src/Navaids/positioned.cxx b/src/Navaids/positioned.cxx
index 974f7a980..18bb22f62 100644
--- a/src/Navaids/positioned.cxx
+++ b/src/Navaids/positioned.cxx
@@ -33,8 +33,6 @@
 #include <boost/algorithm/string/case_conv.hpp>
 #include <boost/algorithm/string/predicate.hpp>
 
-#include <osg/Math> // for osg::isNaN
-
 #include <simgear/timing/timestamp.hxx>
 #include <simgear/debug/logstream.hxx>
 #include <simgear/structure/exception.hxx>
@@ -48,8 +46,8 @@ using namespace flightgear;
 
 static void validateSGGeod(const SGGeod& geod)
 {
-  if (osg::isNaN(geod.getLatitudeDeg()) ||
-      osg::isNaN(geod.getLongitudeDeg()))
+  if (SGMisc<double>::isNaN(geod.getLatitudeDeg()) ||
+      SGMisc<double>::isNaN(geod.getLongitudeDeg()))
   {
     throw sg_range_exception("position is invalid, NaNs");
   }
diff --git a/src/Scripting/NasalSys.cxx b/src/Scripting/NasalSys.cxx
index 9bb1966e7..24b78b4e4 100644
--- a/src/Scripting/NasalSys.cxx
+++ b/src/Scripting/NasalSys.cxx
@@ -225,7 +225,7 @@ static naRef f_getprop(naContext c, naRef me, int argc, naRef* args)
     case props::DOUBLE:
         {
         double dv = p->getDoubleValue();
-        if (osg::isNaN(dv)) {
+        if (SGMisc<double>::isNaN(dv)) {
           SG_LOG(SG_NASAL, SG_ALERT, "Nasal getprop: property " << p->getPath() << " is NaN");
           return naNil();
         }
@@ -280,7 +280,7 @@ static naRef f_setprop(naContext c, naRef me, int argc, naRef* args)
             if(naIsNil(n))
                 naRuntimeError(c, "setprop() value is not string or number");
                 
-            if (osg::isNaN(n.num)) {
+            if (SGMisc<double>::isNaN(n.num)) {
                 naRuntimeError(c, "setprop() passed a NaN");
             }
             
diff --git a/src/Scripting/nasal-props.cxx b/src/Scripting/nasal-props.cxx
index 1d445174e..6112144f2 100644
--- a/src/Scripting/nasal-props.cxx
+++ b/src/Scripting/nasal-props.cxx
@@ -185,7 +185,7 @@ static naRef f_getValue(naContext c, naRef me, int argc, naRef* args)
     case props::DOUBLE:
     {
         double dv = (*node)->getDoubleValue();
-        if (osg::isNaN(dv)) {
+        if (SGMisc<double>::isNaN(dv)) {
           SG_LOG(SG_NASAL, SG_ALERT, "Nasal getValue: property " << (*node)->getPath() << " is NaN");
           return naNil();
         }
@@ -242,7 +242,7 @@ static naRef f_setValue(naContext c, naRef me, int argc, naRef* args)
             naRuntimeError(c, "props.setValue() with non-number");
 
         double d = naNumValue(val).num;
-        if (osg::isNaN(d)) {
+        if (SGMisc<double>::isNaN(d)) {
           naRuntimeError(c, "props.setValue() passed a NaN");
         }
 
@@ -282,7 +282,7 @@ static naRef f_setDoubleValue(naContext c, naRef me, int argc, naRef* args)
     if (naIsNil(r))
         naRuntimeError(c, "props.setDoubleValue() with non-number");
 
-    if (osg::isNaN(r.num)) {
+    if (SGMisc<double>::isNaN(r.num)) {
       naRuntimeError(c, "props.setDoubleValue() passed a NaN");
     }
 
-- 
2.39.5