Move conditional_function to its own module

Author: davidstone

source/bounded/CMakeLists.txt

@@ -58,6 +58,7 @@ target_sources(bounded PUBLIC
 		comparison_builtin.cpp
 		comparison_function_object.cpp
 		concepts.cpp
+		conditional_function.cpp
 		constexpr_only_if.cpp
 		construct.cpp
 		construct_at.cpp

source/bounded/arithmetic/divides.cpp

@@ -11,6 +11,7 @@ import bounded.arithmetic.safe_abs;
 import bounded.arithmetic.unary_minus;
 import bounded.bounded_integer;
 import bounded.comparison;
+import bounded.conditional_function;
 import bounded.homogeneous_equals;
 import bounded.integer;
 import bounded.minmax;
@@ -23,15 +24,6 @@ import std_module;
 
 namespace bounded {
 
-template<bool condition>
-constexpr auto conditional_function(auto if_true, auto if_false) {
-	if constexpr (condition) {
-		return if_true;
-	} else {
-		return if_false;
-	}
-};
-
 // Ignores divide by 0, caught by constexpr
 template<auto lhs, auto rhs>
 constexpr auto safer_divide() {

source/bounded/conditional_function.cpp

@@ -0,0 +1,19 @@
+// Copyright David Stone 2024.
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE_1_0.txt or copy at
+// http://www.boost.org/LICENSE_1_0.txt)
+
+export module bounded.conditional_function;
+
+namespace bounded {
+
+export template<bool condition>
+constexpr auto conditional_function(auto if_true, auto if_false) {
+	if constexpr (condition) {
+		return if_true;
+	} else {
+		return if_false;
+	}
+};
+
+} // namespace bounded