Move stringpiece.h and stringprintf.h to base/.
Change-Id: I7f71b4a12f99c5f81771146c66629ae5a947b229
diff --git a/src/base/stringprintf.h b/src/base/stringprintf.h
new file mode 100644
index 0000000..d707cc0
--- /dev/null
+++ b/src/base/stringprintf.h
@@ -0,0 +1,38 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ART_SRC_BASE_STRINGPRINTF_H_
+#define ART_SRC_BASE_STRINGPRINTF_H_
+
+#include <stdarg.h>
+#include <string>
+
+namespace art {
+
+// Returns a string corresponding to printf-like formatting of the arguments.
+std::string StringPrintf(const char* fmt, ...)
+ __attribute__((__format__(__printf__, 1, 2)));
+
+// Appends a printf-like formatting of the arguments to 'dst'.
+void StringAppendF(std::string* dst, const char* fmt, ...)
+ __attribute__((__format__(__printf__, 2, 3)));
+
+// Appends a printf-like formatting of the arguments to 'dst'.
+void StringAppendV(std::string* dst, const char* format, va_list ap);
+
+} // namespace art
+
+#endif // ART_SRC_BASE_STRINGPRINTF_H_