Changeset 3f3514aa in mainline

Timestamp:

2018-07-05T21:41:22Z (6 years ago)

Author:

Dzejrou <dzejrou@…>

Branches:

lfn, master, serial, ticket/834-toolchain-update, topic/msim-upgrade, topic/simplify-dev-export

Children:

08be4a4

Parents:

2fe861d

git-author:

Dzejrou <dzejrou@…> (2018-05-02 17:32:27)

git-committer:

Dzejrou <dzejrou@…> (2018-07-05 21:41:22)

Message:

cpp: made builtin wrappers constexpr

File:

• uspace/lib/cpp/include/internal/builtins.hpp (modified) (2 diffs)

uspace/lib/cpp/include/internal/builtins.hpp

@@ -42 +42 @@
  */
 
+#include <cstdlib>
+
 namespace std::aux
 {
     template<class T>
-    double log2(T val)
+    constexpr double log2(T val)
     {
         return __builtin_log2(static_cast<double>(val));
@@ -51 +53 @@
 
     template<class T>
-    double pow2(T exp)
+    constexpr double pow2(T exp)
     {
-        return __builtin_pow(2.0, static_cast<double>(val));
+        return __builtin_pow(2.0, static_cast<double>(exp));
     }
 
     template<class T>
-    double ceil(T val)
+    constexpr size_t pow2u(T exp)
+    {
+        return static_cast<size_t>(pow2(exp));
+    }
+
+    template<class T>
+    constexpr double ceil(T val)
     {
         return __builtin_ceil(static_cast<double>(val));