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extern/stdcxx/4.2.1/tests/regress/21.string.append.stdcxx-438.cpp

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+/************************************************************************
+*
+* 21.string.append.stdcxx-438.cpp - regression test for STDCXX-438
+*
+* https://issues.apache.org/jira/browse/STDCXX-438
+*
+* $Id: 21.string.append.stdcxx-438.cpp 641433 2008-03-26 17:39:28Z faridz $
+*
+***************************************************************************
+*
+* Licensed to the Apache Software  Foundation (ASF) under one or more
+* contributor  license agreements.  See  the NOTICE  file distributed
+* with  this  work  for  additional information  regarding  copyright
+* ownership.   The ASF  licenses this  file to  you under  the Apache
+* License, Version  2.0 (the  "License"); you may  not use  this file
+* except in  compliance with the License.   You may obtain  a copy of
+* the License at
+*
+* http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing, software
+* distributed under the  License is distributed on an  "AS IS" BASIS,
+* WITHOUT  WARRANTIES OR CONDITIONS  OF ANY  KIND, either  express or
+* implied.   See  the License  for  the  specific language  governing
+* permissions and limitations under the License.
+*
+**************************************************************************/
+
+#include <cassert>
+#include <cstdlib>
+#include <cstring>
+#include <iterator>
+#include <new>
+#include <string>
+
+#ifndef _RWSTD_NO_REPLACEABLE_NEW_DELETE
+   // disabled for compilers that can't reliably replace the operators
+
+void* operator new (std::size_t n) throw (std::bad_alloc)
+{
+    void* const ptr = std::malloc (n + sizeof n);
+    std::memset (ptr, -1, n);
+    *(std::size_t*)ptr = n;
+    return (std::size_t*)ptr + 1;
+}
+
+void operator delete (void *ptr) throw ()
+{
+    if (ptr) {
+        std::memset (ptr, -1, *((std::size_t*)ptr - 1));
+        std::free ((std::size_t*)ptr - 1);
+    }
+}
+
+#endif   // _RWSTD_NO_REPLACEABLE_NEW_DELETE
+
+struct InputIterator: std::iterator<std::input_iterator_tag, char>
+{
+    const char *p_;
+    InputIterator (const char *p): p_ (p) { }
+
+    char operator* () const { return *p_; }
+    InputIterator& operator++ () { return ++p_, *this; }
+    InputIterator operator++ (int) {
+        return ++p_, InputIterator (p_ - 1);
+    }
+
+    bool operator== (const InputIterator &rhs) const { return p_ == rhs.p_; }
+};
+
+
+int main ()
+{
+    const char s[] = "abc";
+
+    {
+        std::string str (s);
+
+        const char* p0 = s + 1;
+        const char* p1 = p0 + 1;
+
+        const InputIterator first (p0);
+        const InputIterator last (p1);
+
+        str.append (first, last);
+
+        assert ("abcb" == str);
+    }
+
+    {
+        std::string str (s);
+
+        const char* p0 = str.data () + 1;
+        const char* p1 = p0 + 1;
+
+        const InputIterator first (p0);
+        const InputIterator last (p1);
+
+        str.append (first, last);
+
+        assert ("abcb" == str);
+    }
+
+    return 0;
+}