- // this implementation could use mucho memory
- // for big files.
- std::ifstream in(from_path.to_string().c_str());
- std::ofstream out(to_path.to_string().c_str());
-
- if (!in || !out) {
- throw filesystem_error(string_compose(_("Could not open files %1 and %2 for copying"),
- from_path.to_string(), to_path.to_string()));
- }
-
- out << in.rdbuf();
-
- if (!in || !out) {
- throw filesystem_error(string_compose(_("Could not copy existing file %1 to %2"),
- from_path.to_string(), to_path.to_string()));
- remove (to_path);
+ // g_rename is a macro that evaluates to ::rename on
+ // POSIX systems, without the global namespace qualifier
+ // it would evaluate to a recursive call(if it compiled)
+ if ( ::g_rename( from_path.to_string().c_str(),
+ to_path.to_string().c_str() ) == -1 )
+ {
+ throw filesystem_error(g_strerror(errno), errno);