vendor/libc++/libc++-release_370-r246257

1 files changed, 79 insertions, 0 deletions

diff --git a/test/std/strings/basic.string/string.capacity/resize_size.pass.cpp b/test/std/strings/basic.string/string.capacity/resize_size.pass.cpp
new file mode 100644
index 0000000000000..14fe209fd59a3
--- /dev/null
+++ b/test/std/strings/basic.string/string.capacity/resize_size.pass.cpp
@@ -0,0 +1,79 @@
+//===----------------------------------------------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is dual licensed under the MIT and the University of Illinois Open
+// Source Licenses. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <string>
+
+// void resize(size_type n);
+
+#include <string>
+#include <stdexcept>
+#include <cassert>
+
+#include "min_allocator.h"
+
+template <class S>
+void
+test(S s, typename S::size_type n, S expected)
+{
+    try
+    {
+        s.resize(n);
+        assert(s.__invariants());
+        assert(n <= s.max_size());
+        assert(s == expected);
+    }
+    catch (std::length_error&)
+    {
+        assert(n > s.max_size());
+    }
+}
+
+int main()
+{
+    {
+    typedef std::string S;
+    test(S(), 0, S());
+    test(S(), 1, S(1, '\0'));
+    test(S(), 10, S(10, '\0'));
+    test(S(), 100, S(100, '\0'));
+    test(S("12345"), 0, S());
+    test(S("12345"), 2, S("12"));
+    test(S("12345"), 5, S("12345"));
+    test(S("12345"), 15, S("12345\0\0\0\0\0\0\0\0\0\0", 15));
+    test(S("12345678901234567890123456789012345678901234567890"), 0, S());
+    test(S("12345678901234567890123456789012345678901234567890"), 10,
+         S("1234567890"));
+    test(S("12345678901234567890123456789012345678901234567890"), 50,
+         S("12345678901234567890123456789012345678901234567890"));
+    test(S("12345678901234567890123456789012345678901234567890"), 60,
+         S("12345678901234567890123456789012345678901234567890\0\0\0\0\0\0\0\0\0\0", 60));
+    test(S(), S::npos, S("not going to happen"));
+    }
+#if __cplusplus >= 201103L
+    {
+    typedef std::basic_string<char, std::char_traits<char>, min_allocator<char>> S;
+    test(S(), 0, S());
+    test(S(), 1, S(1, '\0'));
+    test(S(), 10, S(10, '\0'));
+    test(S(), 100, S(100, '\0'));
+    test(S("12345"), 0, S());
+    test(S("12345"), 2, S("12"));
+    test(S("12345"), 5, S("12345"));
+    test(S("12345"), 15, S("12345\0\0\0\0\0\0\0\0\0\0", 15));
+    test(S("12345678901234567890123456789012345678901234567890"), 0, S());
+    test(S("12345678901234567890123456789012345678901234567890"), 10,
+         S("1234567890"));
+    test(S("12345678901234567890123456789012345678901234567890"), 50,
+         S("12345678901234567890123456789012345678901234567890"));
+    test(S("12345678901234567890123456789012345678901234567890"), 60,
+         S("12345678901234567890123456789012345678901234567890\0\0\0\0\0\0\0\0\0\0", 60));
+    test(S(), S::npos, S("not going to happen"));
+    }
+#endif
+}