1 files changed, 40 insertions, 0 deletions
diff --git a/Build/source/utils/asymptote/fpu.h b/Build/source/utils/asymptote/fpu.h
new file mode 100644
index 00000000000..5fa7205b43f
--- /dev/null
+++ b/Build/source/utils/asymptote/fpu.h
@@ -0,0 +1,40 @@
+#ifndef FPU_H
+#define FPU_H
+
+#ifdef HAVE_FENV_H
+#ifdef _GNU_SOURCE
+#define HAVE_FEENABLEEXCEPT
+#endif
+#endif
+
+#ifdef HAVE_FEENABLEEXCEPT
+#include <fenv.h>
+
+inline Int fpu_exceptions() {
+  Int excepts=0;
+#ifdef FE_INVALID    
+  excepts |= FE_INVALID;
+#endif    
+#ifdef FE_DIVBYZERO
+  excepts |= FE_DIVBYZERO;
+#endif  
+#ifdef FE_OVERFLOW
+  excepts |= FE_OVERFLOW;
+#endif  
+  return excepts;
+}
+
+inline void fpu_trap(bool trap=true)
+{
+  // Conditionally trap FPU exceptions on NaN, zero divide and overflow.
+  if(trap) feenableexcept(fpu_exceptions());
+  else fedisableexcept(fpu_exceptions());
+}
+
+#else
+
+inline void fpu_trap(bool=true) {}
+
+#endif
+
+#endif