1 files changed, 15 insertions, 0 deletions
diff --git a/winsup/mingw/mingwex/fetestexcept.c b/winsup/mingw/mingwex/fetestexcept.c
new file mode 100644
index 000000000..6934ed925
--- /dev/null
+++ b/winsup/mingw/mingwex/fetestexcept.c
@@ -0,0 +1,15 @@
+#include <fenv.h> 
+/* 7.6.2.5 
+   The fetestexcept function determines which of a specified subset of
+   the exception flags are currently set. The excepts argument
+   specifies the exception flags to be queried.
+   The fetestexcept function returns the value of the bitwise OR of the
+   exception macros corresponding to the currently set exceptions
+   included in excepts. */
+
+int fetestexcept (int excepts)
+{
+  unsigned short _sw;
+  __asm__ ("fnstsw %%ax" : "=a" (_sw));
+  return _sw & excepts & FE_ALL_EXCEPT;
+}