logic/nan: move prototype to header

2 files changed, 10 insertions, 7 deletions

diff --git a/opentrack-logic/nan.hpp b/opentrack-logic/nan.hpp
new file mode 100644
index 00000000..c17cabfd
--- /dev/null
+++ b/opentrack-logic/nan.hpp
@@ -0,0 +1,9 @@
+#pragma once
+
+#if defined(__GNUC__)
+bool __attribute__ ((noinline)) nanp(double value);
+#elif defined(_WIN32)
+__declspec(noinline) bool nanp(double value);
+#else
+bool nanp(double value);
+#endif
diff --git a/opentrack-logic/tracker.cpp b/opentrack-logic/tracker.cpp
index 1b91eb3e..2ac04d03 100644
--- a/opentrack-logic/tracker.cpp
+++ b/opentrack-logic/tracker.cpp
@@ -63,13 +63,7 @@ void Tracker::t_compensate(const rmat& rmat, const double* xyz, double* output,
     output[0] = -ret(1);
 }
 
-#ifdef _WIN32
-__declspec(noinline) bool nanp(double value);
-#elif defined(__GNUC__)
-bool __attribute__ ((noinline)) nanp(double value);
-#else
-bool nanp(double value);
-#endif
+#include "nan.hpp"
 
 static inline double elide_nan(double value, double def)
 {