1 files changed, 32 insertions, 0 deletions
diff --git a/src/round.h b/src/round.h
new file mode 100644
index 000000000..16d280566
--- /dev/null
+++ b/src/round.h
@@ -0,0 +1,32 @@
+#ifndef SEEN_ROUND_H
+#define SEEN_ROUND_H
+
+#include <cmath>
+
+namespace Inkscape {
+
+/** Returns x rounded to the nearest integer.  It is unspecified what happens
+    if x is half way between two integers: we may in future use rint/round
+    on platforms that have them.  If you depend on a particular rounding
+    behaviour, then please change this documentation accordingly.
+**/
+inline double
+round(double const x)
+{
+    return std::floor( x + .5 );
+}
+
+}
+
+#endif /* !SEEN_ROUND_H */
+
+/*
+  Local Variables:
+  mode:c++
+  c-file-style:"stroustrup"
+  c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
+  indent-tabs-mode:nil
+  fill-column:99
+  End:
+*/
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4 :