Just getting our toes wet on <regex>

git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@106187 91177308-0d34-0410-b5e6-96231b3b80d8

test/re/re.traits/translate_nocase.pass.cpp

@@ -0,0 +1,62 @@
+// -*- C++ -*-
+//===-------------------------- algorithm ---------------------------------===//
+//
+//                     The LLVM Compiler Infrastructure
+//
+// This file is distributed under the University of Illinois Open Source
+// License. See LICENSE.TXT for details.
+//
+//===----------------------------------------------------------------------===//
+
+// <regex>
+
+// template <class charT> struct regex_traits;
+
+// charT translate_nocase(charT c) const;
+
+#include <regex>
+#include <cassert>
+
+int main()
+{
+    {
+        std::regex_traits<char> t;
+        assert(t.translate_nocase(' ') == ' ');
+        assert(t.translate_nocase('A') == 'a');
+        assert(t.translate_nocase('\x07') == '\x07');
+        assert(t.translate_nocase('.') == '.');
+        assert(t.translate_nocase('a') == 'a');
+        assert(t.translate_nocase('1') == '1');
+        assert(t.translate_nocase('\xDA') == '\xDA');
+        assert(t.translate_nocase('\xFA') == '\xFA');
+        t.imbue(std::locale("en_US"));
+        assert(t.translate_nocase(' ') == ' ');
+        assert(t.translate_nocase('A') == 'a');
+        assert(t.translate_nocase('\x07') == '\x07');
+        assert(t.translate_nocase('.') == '.');
+        assert(t.translate_nocase('a') == 'a');
+        assert(t.translate_nocase('1') == '1');
+        assert(t.translate_nocase('\xDA') == '\xDA');
+        assert(t.translate_nocase('\xFA') == '\xFA');
+    }
+    {
+        std::regex_traits<wchar_t> t;
+        assert(t.translate_nocase(L' ') == L' ');
+        assert(t.translate_nocase(L'A') == L'a');
+        assert(t.translate_nocase(L'\x07') == L'\x07');
+        assert(t.translate_nocase(L'.') == L'.');
+        assert(t.translate_nocase(L'a') == L'a');
+        assert(t.translate_nocase(L'1') == L'1');
+        assert(t.translate_nocase(L'\xDA') == L'\xDA');
+        assert(t.translate_nocase(L'\xFA') == L'\xFA');
+        t.imbue(std::locale("en_US"));
+        assert(t.translate_nocase(L' ') == L' ');
+        assert(t.translate_nocase(L'A') == L'a');
+        assert(t.translate_nocase(L'\x07') == L'\x07');
+        assert(t.translate_nocase(L'.') == L'.');
+        assert(t.translate_nocase(L'a') == L'a');
+        assert(t.translate_nocase(L'1') == L'1');
+        assert(t.translate_nocase(L'\xDA') == L'\xFA');
+        assert(t.translate_nocase(L'\xFA') == L'\xFA');
+    }
+}