bitwise: prefer template SFINAE over param SFINAE

2018-08-07 16:58:02 +10:00 · 2018-08-07 16:58:02 +10:00 · 1c814c02d2
commit 1c814c02d2
parent d3c5af6fdf
1 changed files with 7 additions and 2 deletions
--- a/bitwise.hpp
+++ b/bitwise.hpp
@ -76,9 +76,14 @@ namespace cruft {


    ///////////////////////////////////////////////////////////////////////////
-    template <typename T>
+    template <
+        typename T,
+        typename = std::enable_if_t<
+            std::is_integral_v<T>
+        >
+    >
    constexpr T
-    popcount (std::enable_if_t<std::is_integral<T>::value,T> t)
+    popcount (T t)
    {
        return __builtin_popcount (t);
    }