Some OS X build fixes.

[libdcp.git] / test / colour_conversion_test.cc

diff --git a/test/colour_conversion_test.cc b/test/colour_conversion_test.cc
index 4640b36c1e57688d6c7a053f087c8a4a0fae4dcb..7193a5efb46db5e4b13a66260d15a90d56f4f0a2 100644 (file)
--- a/test/colour_conversion_test.cc
+++ b/test/colour_conversion_test.cc
@@ -31,10 +31,10 @@ static void
 check_gamma (shared_ptr<const TransferFunction> tf, int bit_depth, float gamma)
 {
        double const * lut = tf->lut (bit_depth);
-       int const count = pow (2, bit_depth);
+       int const count = rint (pow (2.0, bit_depth));
 
        for (int i = 0; i < count; ++i) {
-               BOOST_CHECK_CLOSE (lut[i], pow (double(i) / (count - 1), gamma), 0.001);
+               BOOST_CHECK_CLOSE (lut[i], pow (float(i) / (count - 1), gamma), 0.001);
        }
 }
 
@@ -42,7 +42,7 @@ static void
 check_modified_gamma (shared_ptr<const TransferFunction> tf, int bit_depth, double power, double threshold, double A, double B)
 {
        double const * lut = tf->lut (bit_depth);
-       int const count = pow (2, bit_depth);
+       int const count = rint (pow (2.0, bit_depth));
 
        for (int i = 0; i < count; ++i) {
                double const x = double(i) / (count - 1);