Initial commit

module/jni/libcxx/test/std/strings/basic.string/string.capacity/capacity.pass.cpp

@@ -0,0 +1,75 @@
+//===----------------------------------------------------------------------===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// size_type capacity() const; // constexpr since C++20
+
+#include <string>
+#include <cassert>
+
+#include "test_allocator.h"
+#include "min_allocator.h"
+
+#include "test_macros.h"
+
+template <class S>
+TEST_CONSTEXPR_CXX20 void
+test(S s, test_allocator_statistics& alloc_stats)
+{
+    alloc_stats.throw_after = 0;
+#ifndef TEST_HAS_NO_EXCEPTIONS
+    try
+#endif
+    {
+        while (s.size() < s.capacity())
+            s.push_back(typename S::value_type());
+        assert(s.size() == s.capacity());
+    }
+#ifndef TEST_HAS_NO_EXCEPTIONS
+    catch (...)
+    {
+        assert(false);
+    }
+#endif
+    alloc_stats.throw_after = INT_MAX;
+}
+
+TEST_CONSTEXPR_CXX20 bool test() {
+  {
+    test_allocator_statistics alloc_stats;
+    typedef std::basic_string<char, std::char_traits<char>, test_allocator<char> > S;
+    S s((test_allocator<char>(&alloc_stats)));
+    test(s, alloc_stats);
+    s.assign(10, 'a');
+    s.erase(5);
+    test(s, alloc_stats);
+    s.assign(100, 'a');
+    s.erase(50);
+    test(s, alloc_stats);
+  }
+#if TEST_STD_VER >= 11
+  {
+    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
+    S s;
+    assert(s.capacity() > 0);
+  }
+#endif
+
+  return true;
+}
+
+int main(int, char**)
+{
+  test();
+#if TEST_STD_VER > 17
+  static_assert(test());
+#endif
+
+  return 0;
+}