binary import/export for SLF

include/Algo/Export/export.hpp

@@ -532,9 +532,9 @@ bool exportPlySLFgenericBin(typename PFP::MAP& map, const typename PFP::TVEC3& p
 
 	std::string tmp ;
 	tmp = std::string("ply") ;
-	out.write(tmp,tmp.length()*sizeof(char)) ;
+	out.write(tmp.c_str(),tmp.length()*sizeof(char)) ;
 	tmp = std::string("format binary_little_endian 1.0") ;
-	out.write(tmp,tmp.length()*sizeof(char)) ;
+	out.write(tmp.c_str(),tmp.length()*sizeof(char)) ;
 
 	std::stringstream header ;
 	header << "comment ply SLF (K. Vanhoey generic format): SLF_" << ((extension == ".plyPTMext") ? "PTMext" : "SHreal") << std::endl ;

include/Algo/Import/import2tablesSurface.hpp

@@ -816,6 +816,16 @@ bool MeshTablesSurface<PFP>::importPlySLFgenericBin(const std::string& filename,
 		return false ;
 	}
 
+	buff = new char[31] ;
+	fp.read(buff, 31) ;
+	std::string tag(buff) ;
+	delete[] buff ;
+	if (tag != std::string("format binary_little_endian 1.0")) // verify file type
+	{
+		CGoGNerr << filename << " is not a little endian file !" <<  CGoGNout ;
+		return false ;
+	}
+
 	// read CHNum
 	unsigned int CHNum ;
 	fp.read((char*)&CHNum, sizeof(unsigned int)) ;