From a96c34c17ae3ef5f3f3faf73145c28d4f614b3f6 Mon Sep 17 00:00:00 2001
From: Mateusz Pusz <mateusz.pusz@gmail.com>
Date: Mon, 19 Dec 2022 12:49:15 +0100
Subject: [PATCH] fix: `exp()` implementation fixed

---
 src/core/include/units/math.h        | 2 +-
 test/unit_test/runtime/math_test.cpp | 2 ++
 2 files changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/core/include/units/math.h b/src/core/include/units/math.h
index 1add7346..56818c10 100644
--- a/src/core/include/units/math.h
+++ b/src/core/include/units/math.h
@@ -106,7 +106,7 @@ template<Quantity Q>
  * @param q Quantity being the base of the operation
  * @return Quantity The value of the same quantity type
  */
-template<quantity_of<dimensionless> Q, typename Rep>
+template<weak_quantity_of<dimensionless> Q>
 [[nodiscard]] inline Q exp(const Q& q)
   requires requires { exp(q.number()); } || requires { std::exp(q.number()); }
 {
diff --git a/test/unit_test/runtime/math_test.cpp b/test/unit_test/runtime/math_test.cpp
index 06b18525..3ed98f6d 100644
--- a/test/unit_test/runtime/math_test.cpp
+++ b/test/unit_test/runtime/math_test.cpp
@@ -66,6 +66,8 @@ TEST_CASE("'pow<Num, Den>()' on quantity changes the value and the dimension acc
   REQUIRE(pow<1, 4>(16 * isq::area[m2]) == sqrt(4 * isq::length[m]));
 }
 
+// TODO add tests for exp()
+
 TEST_CASE("absolute functions on quantity returns the absolute value", "[math][abs][fabs]")
 {
   SECTION("'abs()' on a negative quantity returns the abs")