[GitHub] [incubator-doris] PragmaTwice commented on a diff in pull request #9939: [Enhancement] Refactor functions in int_exp by templates

[GitBox <gi...@apache.org>]

PragmaTwice commented on code in PR #9939:
URL: https://github.com/apache/incubator-doris/pull/9939#discussion_r888944806


##########
be/src/vec/common/int_exp.h:
##########
@@ -22,6 +22,34 @@
 
 #include <cstdint>
 #include <limits>
+#include <utility>
+
+namespace exp_details {
+
+// compile-time exp(v, n) by linear recursion
+template <typename T, T v, std::size_t n>
+constexpr inline const T exp = v* exp<T, v, n - 1>;

Review Comment:
   done



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