Replace OStream with std::ostream.

test/cctest/test-regexp.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
 //       with the distribution.
 //     * Neither the name of Google Inc. nor the names of its
 //       contributors may be used to endorse or promote products derived
 //       from this software without specific prior written permission.
 //
 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 
-
-#include <stdlib.h>
+#include <cstdlib>
+#include <sstream>
 
 #include "src/v8.h"
 
 #include "src/ast.h"
 #include "src/char-predicates-inl.h"
 #include "src/jsregexp.h"
 #include "src/ostreams.h"
 #include "src/parser.h"
 #include "src/regexp-macro-assembler.h"
 #include "src/regexp-macro-assembler-irregexp.h"
@@ skipping 56 matching lines @@
 
 static void CheckParseEq(const char* input, const char* expected) {
   v8::HandleScope scope(CcTest::isolate());
   Zone zone(CcTest::i_isolate());
   FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
   RegExpCompileData result;
   CHECK(v8::internal::RegExpParser::ParseRegExp(
       &reader, false, &result, &zone));
   CHECK(result.tree != NULL);
   CHECK(result.error.is_null());
-  OStringStream os;
+  std::ostringstream os;
   result.tree->Print(os, &zone);
-  CHECK_EQ(expected, os.c_str());
+  CHECK_EQ(expected, os.str().c_str());
 }
 
 
 static bool CheckSimple(const char* input) {
   v8::HandleScope scope(CcTest::isolate());
   Zone zone(CcTest::i_isolate());
   FlatStringReader reader(CcTest::i_isolate(), CStrVector(input));
   RegExpCompileData result;
   CHECK(v8::internal::RegExpParser::ParseRegExp(
       &reader, false, &result, &zone));
@@ skipping 309 matching lines @@
   ExpectError("*", kNothingToRepeat);
   ExpectError("?", kNothingToRepeat);
   ExpectError("+", kNothingToRepeat);
   ExpectError("{1}", kNothingToRepeat);
   ExpectError("{1,2}", kNothingToRepeat);
   ExpectError("{1,}", kNothingToRepeat);
 
   // Check that we don't allow more than kMaxCapture captures
   const int kMaxCaptures = 1 << 16;  // Must match RegExpParser::kMaxCaptures.
   const char* kTooManyCaptures = "Too many captures";
-  OStringStream os;
+  std::ostringstream os;
   for (int i = 0; i <= kMaxCaptures; i++) {
     os << "()";
   }
-  ExpectError(os.c_str(), kTooManyCaptures);
+  ExpectError(os.str().c_str(), kTooManyCaptures);
 }
 
 
 static bool IsDigit(uc16 c) {
   return ('0' <= c && c <= '9');
 }
 
 
 static bool NotDigit(uc16 c) {
   return !IsDigit(c);
@@ skipping 1333 matching lines @@
 
   ZoneList<CharacterRange> first_only(4, &zone);
   ZoneList<CharacterRange> second_only(4, &zone);
   ZoneList<CharacterRange> both(4, &zone);
 }
 
 
 TEST(Graph) {
   Execute("\\b\\w+\\b", false, true, true);
 }