[Minor] Use float

diff --git a/src/libserver/html/html_block.hxx b/src/libserver/html/html_block.hxx
index 76b41c14cf502408e93b8f3fd77930de9978aff2..64b53ed7cfaf3c5f99a4b11c51fd7b2b9de1fef6 100644 (file)
--- a/src/libserver/html/html_block.hxx
+++ b/src/libserver/html/html_block.hxx
@@ -185,20 +185,21 @@ struct html_block {
                }
 
                auto is_similar_colors = [](const rspamd::css::css_color &fg, const rspamd::css::css_color &bg) -> bool {
+                       constexpr const auto min_visible_diff = 0.1f;
                        auto diff_r = ((float)fg.r - bg.r);
                        auto diff_g = ((float)fg.g - bg.g);
                        auto diff_b = ((float)fg.b - bg.b);
-                       auto ravg = (fg.r + bg.r) / 2.0;
+                       auto ravg = (fg.r + bg.r) / 2.0f;
 
                        /* Square diffs */
                        diff_r *= diff_r;
                        diff_g *= diff_g;
                        diff_b *= diff_b;
 
-                       auto diff = std::sqrt(2.0 * diff_r + 4.0 * diff_g + 3.0 * diff_b +
-                                                                 (ravg * (diff_r - diff_b) / 256.0)) / 256.0;
+                       auto diff = std::sqrt(2.0f * diff_r + 4.0f * diff_g + 3.0f * diff_b +
+                                                                 (ravg * (diff_r - diff_b) / 256.0f)) / 256.0f;
 
-                       return diff < 0.1;
+                       return diff < min_visible_diff;
                };
                /* Check if we have both bg/fg colors */
                if ((mask & (bg_color_mask|fg_color_mask)) == (bg_color_mask|fg_color_mask)) {