Remove const qualifier to gain move semantic.

1 files changed, 1 insertions, 1 deletions

diff --git a/bitmap.h b/bitmap.h
index 8906ec5..1e35395 100644
--- a/bitmap.h
+++ b/bitmap.h
@@ -66,7 +66,7 @@ using pixel8b = pixel<uint8_t>;
 
 template<typename T>
 class bitmap {
-    const unsigned width, height;
+    unsigned width, height;
     std::vector<pixel<T>> content; // pixels scanned by rows, from top to bottom
 
     pixel<T> &image(unsigned x, unsigned y) {