Merge faces.
MFace* mface_merge (MFace * dst, MFace * src)
Merge faces. The mface_merge() functions merges the properties of face src into dst.
This function returns dst.
Copyright (C) 2001 Information-technology Promotion Agency (IPA)
Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology (AIST)
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