operators.cc: Add test.

2001-08-18  Benjamin Kosnik  <bkoz@redhat.com>

	* testsuite/22_locale/operators.cc: Add test.

From-SVN: r45015

libstdc++-v3/ChangeLog

+2001-08-18  Benjamin Kosnik  <bkoz@redhat.com>
+
+	* testsuite/22_locale/operators.cc: Add test.
+	
 2001-08-17  Benjamin Kosnik  <bkoz@redhat.com>
 
 	Implement std::collate.	

libstdc++-v3/testsuite/22_locale/operators.cc

 // 2000-09-11 Benjamin Kosnik <bkoz@redhat.com>
 
-// Copyright (C) 2000 Free Software Foundation
+// Copyright (C) 2000, 2001 Free Software Foundation
 //
 // This file is part of the GNU ISO C++ Library.  This library is free
 // software; you can redistribute it and/or modify it under the
@@ -46,9 +46,42 @@ void test01()
   VERIFY( loc(str1, str2) == false );
 }
 
+// bool operator()(const string_type&, const string_type&) const
+typedef std::collate<char> ccollate;
+long gnu_count;
+class gnu_collate: public ccollate 
+{ 
+protected:
+  virtual int
+  do_compare(const char*, const char*, const char*, const char*) const
+  { ++gnu_count; }
+}; 
+
+void test02()
+{
+  using namespace std;
+  bool test = true;
+  
+  // Sanity check.
+  locale loc_c = locale::classic();
+  string s01("land of ");
+  string s02("land of look behind");
+  VERIFY( !loc_c(s01, s01) );
+  VERIFY( loc_c(s01, s02) );
+ 
+  // Derivation, MF check.
+  locale loc_gnu(loc_c, new gnu_collate);
+  gnu_count = 0;
+  loc_gnu(s01, s02);
+  VERIFY( gnu_count == 1 );
+}
+
 int main ()
 {
   test01();
 
   return 0;
 }
+
+
+