Initial commit of string_ref; Basic sanity tests

[SVN r81360]

test/string_ref_test1.cpp

@@ -0,0 +1,66 @@
+/* 
+   Copyright (c) Marshall Clow 2012-2012.
+
+   Distributed under the Boost Software License, Version 1.0. (See accompanying
+   file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
+
+    For more information, see http://www.boost.org
+*/
+
+#include <iostream>
+#include <algorithm>
+#include <string>
+
+#include <boost/algorithm/string_ref.hpp>
+
+
+#include <boost/test/included/test_exec_monitor.hpp>
+
+typedef boost::string_ref string_ref;
+
+//  Should be equal
+void interop ( const std::string &str, string_ref ref ) {
+//  BOOST_CHECK ( str == ref );
+    BOOST_CHECK ( str.size () == ref.size ());
+    BOOST_CHECK ( std::equal ( str.begin (), str.end (), ref.begin ()));
+    }
+
+void substr ( const std::string &str ) {
+    const size_t sz = str.size ();
+    string_ref ref ( str );
+    
+//  Substrings at the end
+    for ( size_t i = 0; i <= sz; ++ i )
+        interop ( str.substr ( i ), ref.substr ( i ));
+        
+//  Substrings at the beginning
+    for ( size_t i = 0; i <= sz; ++ i )
+        interop ( str.substr ( 0, i ), ref.substr ( 0, i ));
+        
+//  All possible substrings
+    for ( size_t i = 0; i < sz; ++i )
+        for ( size_t j = i; j < sz; ++j )
+            interop ( str.substr ( i, j ), ref.substr ( i, j ));    
+    }
+
+const char *test_strings [] = {
+    "",
+    "1",
+    "ABCDEFGHIJKLMNOPQRSTUVWXYZ",
+    "0123456789",
+    NULL
+    };
+    
+int test_main( int , char* [] ) {
+
+    const char **p = &test_strings[0];
+    
+    while ( *p != NULL ) {
+        interop ( *p, *p );
+        substr ( *p );
+
+        p++;
+        }
+
+    return 0;
+    }