c99_math: (trivial) implement exp2 for MSVC too

Unsurprisingly doesn't build otherwise with old msvc.
2015-07-29 22:20:04 +02:00
parent e933d54599
commit 2b916c6e47
1 changed files with 6 additions and 0 deletions
--- a/include/c99_math.h
+++ b/include/c99_math.h
@@ -146,6 +146,12 @@ exp2f(float f)
   return powf(2.0f, f);
 }

+static inline double
+exp2(double d)
+{
+   return pow(2.0, d);
+}
+
 #endif /* C99 */