Disable further promotion with forwarding policy

mborland · mborland · commit dc23aa336316 · 2025-08-14T10:39:13.000+02:00
diff --git a/include/boost/math/distributions/logistic.hpp b/include/boost/math/distributions/logistic.hpp
@@ -149,7 +149,7 @@ namespace boost { namespace math {
 
        using promoted_real_type = typename policies::evaluation<RealType, Policy>::type;
        promoted_real_type power = (static_cast<promoted_real_type>(x) - static_cast<promoted_real_type>(location)) / static_cast<promoted_real_type>(scale);
-       return logistic_sigmoid(power, Policy());
+       return logistic_sigmoid(power, policies::make_forwarding_policy_t<Policy>());
     }
 
     template <class RealType, class Policy>
@@ -252,7 +252,7 @@ namespace boost { namespace math {
 
        using promoted_real_type = typename policies::evaluation<RealType, Policy>::type;
        promoted_real_type power = (static_cast<promoted_real_type>(location) - static_cast<promoted_real_type>(x)) / static_cast<promoted_real_type>(scale);
-       return logistic_sigmoid(power, Policy());
+       return logistic_sigmoid(power, policies::make_forwarding_policy_t<Policy>());
     } 
 
     template <class RealType, class Policy>

Original file line number	Diff line number	Diff line change
`@@ -149,7 +149,7 @@ namespace boost { namespace math {`
`149`	`149`
`150`	`150`	`using promoted_real_type = typename policies::evaluation<RealType, Policy>::type;`
`151`	`151`	`promoted_real_type power = (static_cast<promoted_real_type>(x) - static_cast<promoted_real_type>(location)) / static_cast<promoted_real_type>(scale);`
`152`		`- return logistic_sigmoid(power, Policy());`
	`152`	`+ return logistic_sigmoid(power, policies::make_forwarding_policy_t<Policy>());`
`153`	`153`	`}`
`154`	`154`
`155`	`155`	`template <class RealType, class Policy>`
`@@ -252,7 +252,7 @@ namespace boost { namespace math {`
`252`	`252`
`253`	`253`	`using promoted_real_type = typename policies::evaluation<RealType, Policy>::type;`
`254`	`254`	`promoted_real_type power = (static_cast<promoted_real_type>(location) - static_cast<promoted_real_type>(x)) / static_cast<promoted_real_type>(scale);`
`255`		`- return logistic_sigmoid(power, Policy());`
	`255`	`+ return logistic_sigmoid(power, policies::make_forwarding_policy_t<Policy>());`
`256`	`256`	`}`
`257`	`257`
`258`	`258`	`template <class RealType, class Policy>`