Make function to be available in constant expressions

devatrun · devatrun · commit c5bbc1edb342 · 2021-11-23T00:44:13.000+03:00
diff --git a/include/slimcpplib/long_math.h b/include/slimcpplib/long_math.h
@@ -317,7 +317,7 @@ constexpr type_t popcnt_impl(type_t value) noexcept
 template<typename type_t, std::enable_if_t<is_unsigned_v<type_t>, int>>
 constexpr uint_t popcnt(type_t value) noexcept
 {
-    return popcnt_impl<type_t>(value) & ((bit_count_v<type_t> << 2) - 1);
+    return static_cast<uint_t>(popcnt_impl<type_t>(value) & ((bit_count_v<type_t> << 2) - 1));
 }
 
 

Original file line number	Diff line number	Diff line change
`@@ -317,7 +317,7 @@ constexpr type_t popcnt_impl(type_t value) noexcept`
`317`	`317`	`template<typename type_t, std::enable_if_t<is_unsigned_v<type_t>, int>>`
`318`	`318`	`constexpr uint_t popcnt(type_t value) noexcept`
`319`	`319`	`{`
`320`		`- return popcnt_impl<type_t>(value) & ((bit_count_v<type_t> << 2) - 1);`
	`320`	`+ return static_cast<uint_t>(popcnt_impl<type_t>(value) & ((bit_count_v<type_t> << 2) - 1));`
`321`	`321`	`}`
`322`	`322`
`323`	`323`