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MSVC has no std::isnan

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This commit is contained in:
Frederic Bouvier 2012-09-26 08:36:56 +02:00
parent 25130e3c82
commit 98ca36e8f5
1 changed files with 5 additions and 1 deletions
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6
simgear/math/SGGeod.hxx
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@ -20,6 +20,10 @@
#include <simgear/constants.h>
#ifndef _MSC_VER
using std::isnan;
#endif
// #define SG_GEOD_NATIVE_DEGREE
/// Class representing a geodetic location
@ -352,7 +356,7 @@ inline
bool
SGGeod::isValid() const
{
if (std::isnan(_lon) || std::isnan(_lat)) return false;
if (isnan(_lon) || isnan(_lat)) return false;
#ifdef SG_GEOD_NATIVE_DEGREE
return (_lon >= -180.0) && (_lon <= 180.0) &&
(_lat >= -90.0) && (_lat <= 90.0);