include/ddk/fltsafe.h

   1 #if (NTDDI_VERSION >= NTDDI_WINXP)
   2 struct FLOATSAFE {
   3   KFLOATING_SAVE FloatSave;
   4   NTSTATUS ntStatus;
   5   FLOATSAFE::FLOATSAFE(void) {
   6     ntStatus = KeSaveFloatingPointState(&FloatSave);
   7   }
   8   FLOATSAFE::~FLOATSAFE(void) {
   9     if (NT_SUCCESS(ntStatus)) {
  10       KeRestoreFloatingPointState(&FloatSave);
  11     }
  12   }
  13 };
  14 #endif