Fix build errors

Author: k3DW

src/pstack/calc/rotations.cpp

@@ -15,9 +15,9 @@ const std::array<geo::matrix3<float>, 32> arbitrary_rotations = [] {
     std::mt19937 gen(rd());
     std::uniform_real_distribution<float> dis(0, 2 * geo::pi);
     for (std::size_t i = 6; i != 32; ++i) {
-        out[i] = geo::rot3_z(geo::radians{dis(gen)})
-               * geo::rot3_y(geo::radians{dis(gen)})
-               * geo::rot3_x(geo::radians{dis(gen)});
+        out[i] = geo::rot3_z<float>(geo::radians{dis(gen)})
+               * geo::rot3_y<float>(geo::radians{dis(gen)})
+               * geo::rot3_x<float>(geo::radians{dis(gen)});
     }
     return out;
 }();

src/pstack/geo/functions.hpp

@@ -18,18 +18,18 @@ struct radians;
 struct degrees;
 
 struct radians {
-    explicit radians(double val) : value(val) {}
-    radians(degrees d);
+    explicit constexpr radians(double val) : value(val) {}
+    constexpr radians(degrees d);
     double value;
 };
 struct degrees {
-    explicit degrees(double val) : value(val) {}
-    degrees(radians r);
+    explicit constexpr degrees(double val) : value(val) {}
+    constexpr degrees(radians r);
     double value;
 };
 
-inline radians::radians(degrees d) : value(d.value * (pi / 180)) {}
-inline degrees::degrees(radians r) : value(r.value * (180 / pi)) {}
+constexpr radians::radians(degrees d) : value(d.value * (pi / 180)) {}
+constexpr degrees::degrees(radians r) : value(r.value * (180 / pi)) {}
 
 constexpr double sin(radians r) {
     double x = r.value;