add lab3

lab3/grid2DIO.h

@@ -0,0 +1,38 @@
+// Functions to read/write a 2D grid of 3D points.
+
+#ifndef GRID2DIO_H
+#define GRID2DIO_H
+
+#include <iostream>
+#include <string>
+#include <vector>
+
+#include "grid2DPoints3D.h"
+
+// Header string used in grid2D files.
+extern const std::string GRID2D_POINTS3D_HEADER;
+
+/// Return true if line equals the grid2D file header.
+bool IsHeader(const std::string& line);
+
+/// Return true if line is a comment line (starts with '#') or blank.
+bool IsCommentOrBlankLine(const std::string& line);
+
+/// Read grid2D from an open input stream.
+void ReadGrid2DPoints3D(std::istream& infile, GRID2D_POINTS3D& grid2D);
+
+/// Open filename and read grid2D from it.
+void OpenReadGrid2DPoints3D(const std::string& filename,
+                             GRID2D_POINTS3D& grid2D);
+
+/// Write grid2D to an open output stream.
+void WriteGrid2DPoints3D(std::ostream& outfile,
+                          const GRID2D_POINTS3D& grid2D,
+                          const std::vector<std::string>& comment_list = {});
+
+/// Open filename and write grid2D to it.
+void OpenWriteGrid2DPoints3D(const std::string& filename,
+                               const GRID2D_POINTS3D& grid2D,
+                               const std::vector<std::string>& comment_list = {});
+
+#endif // GRID2DIO_H