Move test into test/std subdirectory.

llvm-svn: 224658

1 files changed, 107 insertions, 0 deletions

diff --git a/libcxx/test/std/experimental/string.view/string.view.ops/substr.pass.cpp b/libcxx/test/std/experimental/string.view/string.view.ops/substr.pass.cpp
new file mode 100644
index 00000000000..2b134ea2cf0
--- /dev/null
+++ b/libcxx/test/std/experimental/string.view/string.view.ops/substr.pass.cpp
@@ -0,0 +1,107 @@
+//===----------------------------------------------------------------------===//
+//
+//                     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_view>
+
+// constexpr basic_string_view substr(size_type pos = 0, size_type n = npos) const;
+
+// Throws: out_of_range if pos > size().
+// Effects: Determines the effective length rlen of the string to reference as the smaller of n and size() - pos.
+// Returns: basic_string_view(data()+pos, rlen).
+
+#include <experimental/string_view>
+#include <cassert>
+
+template<typename CharT>
+void test1 ( std::experimental::basic_string_view<CharT> sv, size_t n, size_t pos ) {
+    try {
+        std::experimental::basic_string_view<CharT> sv1 = sv.substr(pos, n);
+        const size_t rlen = std::min ( n, sv.size() - pos );
+        assert ( sv1.size() == rlen );
+        for ( size_t i = 0; i <= rlen; ++i )
+            assert ( sv[pos+i] == sv1[i] );
+        }
+    catch ( const std::out_of_range & ) { assert ( pos > sv.size()); }
+}
+
+
+template<typename CharT>
+void test ( const CharT *s ) {
+    typedef std::experimental::basic_string_view<CharT> string_view_t;
+    
+    string_view_t sv1 ( s );
+
+    test1(sv1,  0, 0);
+    test1(sv1,  1, 0);
+    test1(sv1, 20, 0);
+    test1(sv1, sv1.size(), 0);
+    
+    test1(sv1,   0, 3);
+    test1(sv1,   2, 3);
+    test1(sv1, 100, 3);
+
+    test1(sv1, 0, string_view_t::npos);
+    test1(sv1, 2, string_view_t::npos);
+    test1(sv1, sv1.size(), string_view_t::npos);
+
+    test1(sv1, sv1.size() + 1, 0);
+    test1(sv1, sv1.size() + 1, 1);
+    test1(sv1, sv1.size() + 1, string_view_t::npos);
+}
+
+int main () {
+    test ( "ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( "ABCDE");
+    test ( "a" );
+    test ( "" );
+
+    test ( L"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( L"ABCDE" );
+    test ( L"a" );
+    test ( L"" );
+
+#if __cplusplus >= 201103L
+    test ( u"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( u"ABCDE" );
+    test ( u"a" );
+    test ( u"" );
+
+    test ( U"ABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDEABCDE" );
+    test ( U"ABCDE" );
+    test ( U"a" );
+    test ( U"" );
+#endif
+    
+#if _LIBCPP_STD_VER > 11
+    {
+    constexpr std::experimental::string_view sv1 { "ABCDE", 5 };
+
+    {
+    constexpr std::experimental::string_view sv2 = sv1.substr ( 0, 3 );
+    static_assert ( sv2.size() == 3, "" );
+    static_assert ( sv2[0] == 'A', "" );
+    static_assert ( sv2[1] == 'B', "" );
+    static_assert ( sv2[2] == 'C', "" );
+    }
+    
+    {
+    constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 0 );
+    static_assert ( sv2.size() == 0, "" );
+    }
+
+    {
+    constexpr std::experimental::string_view sv2 = sv1.substr ( 3, 3 );
+    static_assert ( sv2.size() == 2, "" );
+    static_assert ( sv2[0] == 'D', "" );
+    static_assert ( sv2[1] == 'E', "" );
+    }
+    }
+#endif
+}
\ No newline at end of file