fix crash in OMWriter when writing an empty mesh with colors

d0033f99 · Max Lyon · 33808615 · d0033f99
Commit d0033f99 authored Dec 14, 2015 by Max Lyon
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src/OpenMesh/Core/IO/writer/OMWriter.cc src/OpenMesh/Core/IO/writer/OMWriter.cc +1 -1

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--- a/src/OpenMesh/Core/IO/writer/OMWriter.cc
+++ b/src/OpenMesh/Core/IO/writer/OMWriter.cc
@@ -248,7 +248,7 @@ bool _OMWriter_::write_binary(std::ostream& _os, BaseExporter& _be,
  }

  // ---------- write vertex color
-  if (_opt.check( Options::VertexColor ) && _be.has_vertex_colors() )
+  if (_be.n_vertices() && _opt.check( Options::VertexColor ) && _be.has_vertex_colors() )
  {
    Vec3uc c = _be.color(VertexHandle(0));