1 files changed, 19 insertions, 0 deletions
diff --git a/math/w_exp2f_compat.c b/math/w_exp2f_compat.c
new file mode 100644
index 0000000000..61cbd6cda1
--- /dev/null
+++ b/math/w_exp2f_compat.c
@@ -0,0 +1,19 @@
+/*
+ * wrapper exp2f(x)
+ */
+
+#include <math.h>
+#include <math_private.h>
+
+float
+__exp2f (float x)
+{
+  float z = __ieee754_exp2f (x);
+  if (__builtin_expect (!isfinite (z) || z == 0, 0)
+      && isfinite (x) && _LIB_VERSION != _IEEE_)
+    /* exp2 overflow: 144, exp2 underflow: 145 */
+    return __kernel_standard_f (x, x, 144 + !!signbit (x));
+
+  return z;
+}
+weak_alias (__exp2f, exp2f)