locale_facets.tcc (__pad): correctly output hex numbers internally aligned.

2001-11-28  Paolo Carlini  <pcarlini@unitus.it>

	libstdc++/3655
	* include/bits/locale_facets.tcc (__pad): correctly output hex
	numbers internally aligned.
	* testsuite/27_io/ostream_inserter_arith.cc: Add testcase.

From-SVN: r47433

libstdc++-v3/ChangeLog

+2001-11-28  Paolo Carlini  <pcarlini@unitus.it>
+
+	libstdc++/3655
+	* include/bits/locale_facets.tcc (__pad): correctly output hex
+	numbers internally aligned.
+	* testsuite/27_io/ostream_inserter_arith.cc: Add testcase.
+
 2001-11-28  Paolo Carlini <pcarlini@unitus.it>
 	    Loren J. Rittle <ljrittle@acm.org>
 

libstdc++-v3/include/bits/locale_facets.tcc

@@ -1959,9 +1959,9 @@ namespace std
 	      __news[1] = __olds[1];
 	      __mod += 2;
 	      __news += 2;
-	      __beg = const_cast<char_type*>(__olds + __mod);
-	      __beglen = __oldlen - __mod;
-	      __end = __pads;
+	      __beg = __pads;
+	      __beglen = __plen;
+	      __end = const_cast<char_type*>(__olds + __mod);
 	    }
 	  else if (__testsign)
 	    {

libstdc++-v3/testsuite/27_io/ostream_inserter_arith.cc

@@ -308,11 +308,25 @@ test03()
   return 0;
 }
 
+// libstdc++/3655
+int
+test04()
+{
+  stringbuf strbuf;
+  ostream o(&strbuf);
+
+  o << hex << showbase << setw(6) << internal << 255;
+  VERIFY( strbuf.str() == "0x  ff" );
+  
+  return 0;
+}
+
 int 
 main()
 {
   test01();
   test02();
+  test04();
 #ifdef TEST_NUMPUT_VERBOSE
   cout << "Test passed!" << endl;
 #endif