[CRT] Add a generic C version of exp2(f) and use it for all architecture

[reactos.git] / sdk / lib / crt / math / exp2.c

diff --git a/sdk/lib/crt/math/exp2.c b/sdk/lib/crt/math/exp2.c
new file mode 100644 (file)
index 0000000..e843be9
--- /dev/null
+++ b/sdk/lib/crt/math/exp2.c
@@ -0,0 +1,13 @@
+
+#include <math.h>
+
+_Check_return_
+double
+__cdecl
+exp2(
+    _In_ double x)
+{
+    /* This below avoids clang to optimize our pow call to exp2 */
+    static const TWO = 2.0;
+    return pow(TWO, x);
+}