[core] don't use <boost/functional/hash.hpp> to avoid <locale> include

1 files changed, 12 insertions, 9 deletions

diff --git a/src/mbgl/text/glyph_range.hpp b/src/mbgl/text/glyph_range.hpp
index 74afb73dfc..35a1f74b94 100644
--- a/src/mbgl/text/glyph_range.hpp
+++ b/src/mbgl/text/glyph_range.hpp
@@ -3,21 +3,24 @@
 #include <utility>
 #include <cstdint>
 #include <unordered_set>
-#include <boost/functional/hash.hpp>
+#include <mbgl/util/hash.hpp>
 
 namespace mbgl {
 
 using GlyphRange = std::pair<uint16_t, uint16_t>;
 
-struct GlyphRangeHash {
-    std::size_t operator()(const GlyphRange& glyphRange) const {
-        return boost::hash_value(glyphRange);
-    }
-};
-
-using GlyphRangeSet = std::unordered_set<GlyphRange, GlyphRangeHash>;
-
 constexpr uint32_t GLYPHS_PER_GLYPH_RANGE = 256;
 constexpr uint32_t GLYPH_RANGES_PER_FONT_STACK = 256;
 
 } // end namespace mbgl
+
+namespace std {
+
+template <>
+struct hash<mbgl::GlyphRange> {
+    std::size_t operator()(const mbgl::GlyphRange& range) const {
+        return mbgl::util::hash(range.first, range.second);
+    }
+};
+
+} // namespace std