Replace OStream with std::ostream.

src/flags.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include <ctype.h>
-#include <stdlib.h>
+#include <cctype>
+#include <cstdlib>
+#include <sstream>
 
 #include "src/v8.h"
 
 #include "src/assembler.h"
 #include "src/base/platform/platform.h"
 #include "src/ostreams.h"
 
 namespace v8 {
 namespace internal {
 
@@ skipping 157 matching lines @@
     case Flag::TYPE_INT: return "int";
     case Flag::TYPE_FLOAT: return "float";
     case Flag::TYPE_STRING: return "string";
     case Flag::TYPE_ARGS: return "arguments";
   }
   UNREACHABLE();
   return NULL;
 }
 
 
-OStream& operator<<(OStream& os, const Flag& flag) {  // NOLINT
+std::ostream& operator<<(std::ostream& os, const Flag& flag) {  // NOLINT
   switch (flag.type()) {
     case Flag::TYPE_BOOL:
       os << (*flag.bool_variable() ? "true" : "false");
       break;
     case Flag::TYPE_MAYBE_BOOL:
       os << (flag.maybe_bool_variable()->has_value
                  ? (flag.maybe_bool_variable()->value ? "true" : "false")
                  : "unset");
       break;
     case Flag::TYPE_INT:
@@ skipping 29 matching lines @@
   for (size_t i = 0; i < num_flags; ++i) {
     Flag* f = &flags[i];
     if (!f->IsDefault()) {
       if (f->type() == Flag::TYPE_ARGS) {
         DCHECK(args_flag == NULL);
         args_flag = f;  // Must be last in arguments.
         continue;
       }
       {
         bool disabled = f->type() == Flag::TYPE_BOOL && !*f->bool_variable();
-        OStringStream os;
+        std::ostringstream os;
         os << (disabled ? "--no" : "--") << f->name();
-        args->Add(StrDup(os.c_str()));
+        args->Add(StrDup(os.str().c_str()));
       }
       if (f->type() != Flag::TYPE_BOOL) {
-        OStringStream os;
+        std::ostringstream os;
         os << *f;
-        args->Add(StrDup(os.c_str()));
+        args->Add(StrDup(os.str().c_str()));
       }
     }
   }
   if (args_flag != NULL) {
-    OStringStream os;
+    std::ostringstream os;
     os << "--" << args_flag->name();
-    args->Add(StrDup(os.c_str()));
+    args->Add(StrDup(os.str().c_str()));
     JSArguments jsargs = *args_flag->args_variable();
     for (int j = 0; j < jsargs.argc; j++) {
       args->Add(StrDup(jsargs[j]));
     }
   }
   return args;
 }
 
 
 inline char NormalizeChar(char ch) {
@@ skipping 283 matching lines @@
 
 
 // static
 void FlagList::EnforceFlagImplications() {
 #define FLAG_MODE_DEFINE_IMPLICATIONS
 #include "src/flag-definitions.h"
 #undef FLAG_MODE_DEFINE_IMPLICATIONS
 }
 
 } }  // namespace v8::internal