Implement full support for non-pointer pointers in custom allocators for string.  This completes the custom pointer support for the entire library.

llvm-svn: 185167
diff --git a/libcxx/test/strings/basic.string/string.access/at.pass.cpp b/libcxx/test/strings/basic.string/string.access/at.pass.cpp
index 5be117b..e24b560 100644
--- a/libcxx/test/strings/basic.string/string.access/at.pass.cpp
+++ b/libcxx/test/strings/basic.string/string.access/at.pass.cpp
@@ -16,6 +16,8 @@
 #include <stdexcept>
 #include <cassert>
 
+#include "../min_allocator.h"
+
 template <class S>
 void
 test(S s, typename S::size_type pos)
@@ -35,10 +37,22 @@
 
 int main()
 {
+    {
     typedef std::string S;
     test(S(), 0);
     test(S("123"), 0);
     test(S("123"), 1);
     test(S("123"), 2);
     test(S("123"), 3);
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
+    test(S(), 0);
+    test(S("123"), 0);
+    test(S("123"), 1);
+    test(S("123"), 2);
+    test(S("123"), 3);
+    }
+#endif
 }
diff --git a/libcxx/test/strings/basic.string/string.access/back.pass.cpp b/libcxx/test/strings/basic.string/string.access/back.pass.cpp
index 1f70b44..f241d4d 100644
--- a/libcxx/test/strings/basic.string/string.access/back.pass.cpp
+++ b/libcxx/test/strings/basic.string/string.access/back.pass.cpp
@@ -15,6 +15,8 @@
 #include <string>
 #include <cassert>
 
+#include "../min_allocator.h"
+
 template <class S>
 void
 test(S s)
@@ -28,7 +30,16 @@
 
 int main()
 {
+    {
     typedef std::string S;
     test(S("1"));
     test(S("1234567890123456789012345678901234567890"));
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
+    test(S("1"));
+    test(S("1234567890123456789012345678901234567890"));
+    }
+#endif
 }
diff --git a/libcxx/test/strings/basic.string/string.access/front.pass.cpp b/libcxx/test/strings/basic.string/string.access/front.pass.cpp
index e49ed69..ecfafb5 100644
--- a/libcxx/test/strings/basic.string/string.access/front.pass.cpp
+++ b/libcxx/test/strings/basic.string/string.access/front.pass.cpp
@@ -15,6 +15,8 @@
 #include <string>
 #include <cassert>
 
+#include "../min_allocator.h"
+
 template <class S>
 void
 test(S s)
@@ -28,7 +30,16 @@
 
 int main()
 {
+    {
     typedef std::string S;
     test(S("1"));
     test(S("1234567890123456789012345678901234567890"));
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
+    test(S("1"));
+    test(S("1234567890123456789012345678901234567890"));
+    }
+#endif
 }
diff --git a/libcxx/test/strings/basic.string/string.access/index.pass.cpp b/libcxx/test/strings/basic.string/string.access/index.pass.cpp
index 50ee6fe..b564353 100644
--- a/libcxx/test/strings/basic.string/string.access/index.pass.cpp
+++ b/libcxx/test/strings/basic.string/string.access/index.pass.cpp
@@ -15,8 +15,11 @@
 #include <string>
 #include <cassert>
 
+#include "../min_allocator.h"
+
 int main()
 {
+    {
     typedef std::string S;
     S s("0123456789");
     const S& cs = s;
@@ -28,4 +31,20 @@
     assert(cs[cs.size()] == '\0');
     const S s2 = S();
     assert(s2[0] == '\0');
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
+    S s("0123456789");
+    const S& cs = s;
+    for (S::size_type i = 0; i < cs.size(); ++i)
+    {
+        assert(s[i] == '0' + i);
+        assert(cs[i] == s[i]);
+    }
+    assert(cs[cs.size()] == '\0');
+    const S s2 = S();
+    assert(s2[0] == '\0');
+    }
+#endif
 }