Imported gcc-4.4.3

[msp430-gcc.git] / libstdc++-v3 / testsuite / 27_io / basic_istream / getline / char / 2.cc

diff --git a/libstdc++-v3/testsuite/27_io/basic_istream/getline/char/2.cc b/libstdc++-v3/testsuite/27_io/basic_istream/getline/char/2.cc
new file mode 100644 (file)
index 0000000..486e0e5
--- /dev/null
+++ b/libstdc++-v3/testsuite/27_io/basic_istream/getline/char/2.cc
@@ -0,0 +1,99 @@
+// 1999-08-11 bkoz
+
+// Copyright (C) 1999, 2000, 2001, 2002, 2003, 2009 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
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, or (at your option)
+// any later version.
+
+// This library is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+
+// You should have received a copy of the GNU General Public License along
+// with this library; see the file COPYING3.  If not see
+// <http://www.gnu.org/licenses/>.
+
+// 27.6.1.3 unformatted input functions
+
+#include <cstring> // for strlen
+#include <istream>
+#include <sstream>
+#include <testsuite_hooks.h>
+
+// [patch] bits/istream.tcc - getline(char_type*,streamsize,char_type)
+// http://gcc.gnu.org/ml/libstdc++/2000-07/msg00003.html
+void
+test05()
+{
+  const char* charray = "\n"
+"a\n"
+"aa\n"
+"aaa\n"
+"aaaa\n"
+"aaaaa\n"
+"aaaaaa\n"
+"aaaaaaa\n"
+"aaaaaaaa\n"
+"aaaaaaaaa\n"
+"aaaaaaaaaa\n"
+"aaaaaaaaaaa\n"
+"aaaaaaaaaaaa\n"
+"aaaaaaaaaaaaa\n"
+"aaaaaaaaaaaaaa\n";
+
+  bool test __attribute__((unused)) = true;
+  const std::streamsize it = 5;
+  std::streamsize br = 0;
+  char tmp[it];
+  std::stringbuf sb(charray, std::ios_base::in);
+  std::istream ifs(&sb);
+  std::streamsize blen = std::strlen(charray);
+  VERIFY(!(!ifs));
+  while(ifs.getline(tmp, it) || ifs.gcount())
+    {
+      br += ifs.gcount();
+      if(ifs.eof())
+        {
+          // Just sanity checks to make sure we've extracted the same
+          // number of chars that were in the streambuf
+          VERIFY(br == blen);
+          // Also, we should only set the failbit if we could
+          // _extract_ no chars from the stream, i.e. the first read
+          // returned EOF. 
+          VERIFY(ifs.fail() && ifs.gcount() == 0);
+        }
+      else if(ifs.fail())
+        {
+         // delimiter not read
+         //
+         // either
+         // -> extracted no characters
+         // or
+         // -> n - 1 characters are stored
+          ifs.clear(ifs.rdstate() & ~std::ios::failbit);
+          VERIFY((ifs.gcount() == 0) || (std::strlen(tmp) == it - 1));
+          VERIFY(!(!ifs));
+          continue;
+        }
+      else 
+        {
+         // delimiter was read.
+         //
+         // -> strlen(__s) < n - 1 
+         // -> delimiter was seen -> gcount() > strlen(__s)
+          VERIFY(ifs.gcount() == static_cast<std::streamsize>(std::strlen(tmp) + 1) );
+          continue;
+        }
+    }
+}
+
+int 
+main()
+{
+  test05();
+  return 0;
+}