initial version

mrw/file.hpp

@@ -0,0 +1,47 @@
+/** @file
+
+    $Id$
+
+    $Date$
+    $Author$
+
+    @copy © Marc Wäckerlin
+    @license LGPL, see file <a href="license.html">COPYING</a>
+
+    $Log$
+    Revision 1.1  2005/01/07 00:31:38  marc
+    initial version
+
+
+         1         2         3         4         5         6         7         8
+    5678901234567890123456789012345678901234567890123456789012345678901234567890
+*/
+#ifndef __MRW_FILE_HPP__
+#define __MRW_FILE_HPP__
+
+#include <mrw/exception.hpp>
+#include <string>
+#include <fstream>
+
+namespace mrw {
+  class File {
+  public:
+    static void copy(std::string from, std::string to) throw (std::exception) {
+      std::ifstream is(from.c_str());
+      if (!is)
+        throw mrw::invalid_argument("Cannot read file: '"+from+"'");
+      is.seekg(0, std::ios::end);
+      int size(is.tellg());
+      std::string contents(size, 0); // make buffer long enough to store all
+      is.seekg(0, std::ios::beg);
+      is.read(contents.begin().operator->(), size); // hack to get the buffer
+      if (!is.good() && is.eof())
+        throw mrw::invalid_argument("Cannot read file: '"+from+"'");
+      std::ofstream os(to.c_str());
+      os<<contents;
+      if (!os) throw mrw::invalid_argument("Cannot write file: '"+to+"'");
+    }
+  };
+}
+
+#endif