Uses SNPRINT macro where possible. Otherwise uses #define for format.

runtime/vm/benchmark_test.cc

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "vm/benchmark_test.h"
 
 #include "bin/builtin.h"
 #include "bin/file.h"
 
 #include "platform/assert.h"
@@ skipping 336 matching lines @@
 }
 
 BENCHMARK(Dart2JSCompileAll) {
   bin::Builtin::SetNativeResolver(bin::Builtin::kBuiltinLibrary);
   bin::Builtin::SetNativeResolver(bin::Builtin::kIOLibrary);
   SetupDart2JSPackagePath();
   char* dart_root = ComputeDart2JSPath(Benchmark::Executable());
   char* script = NULL;
   if (dart_root != NULL) {
     HANDLESCOPE(thread);
-    const char* kFormatStr =
-        "import '%s/pkg/compiler/lib/compiler.dart';";
-    intptr_t len = OS::SNPrint(NULL, 0, kFormatStr, dart_root) + 1;
-    script = reinterpret_cast<char*>(malloc(len));
-    EXPECT(script != NULL);
-    OS::SNPrint(script, len, kFormatStr, dart_root);
+    script = OS::SCreate(NULL,
+        "import '%s/pkg/compiler/lib/compiler.dart';", dart_root);
     Dart_Handle lib = TestCase::LoadTestScript(
         script,
         reinterpret_cast<Dart_NativeEntryResolver>(NativeResolver));
     EXPECT_VALID(lib);
   } else {
     Dart_Handle lib = TestCase::LoadTestScript(
         "import 'pkg/compiler/lib/compiler.dart';",
         reinterpret_cast<Dart_NativeEntryResolver>(NativeResolver));
     EXPECT_VALID(lib);
   }
@@ skipping 326 matching lines @@
                                  thread);
     reader.ReadObject();
     free(buffer);
   }
   timer.Stop();
   int64_t elapsed_time = timer.TotalElapsedTime();
   benchmark->set_score(elapsed_time);
 }
 
 }  // namespace dart