| /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. |
| |
| 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. |
| ==============================================================================*/ |
| |
| // Printf variants that place their output in a C++ string. |
| // |
| // Usage: |
| // string result = strings::Printf("%d %s\n", 10, "hello"); |
| // strings::Appendf(&result, "%d %s\n", 20, "there"); |
| |
| #ifndef TENSORFLOW_CORE_PLATFORM_STRINGPRINTF_H_ |
| #define TENSORFLOW_CORE_PLATFORM_STRINGPRINTF_H_ |
| |
| #include <stdarg.h> |
| |
| #include <string> |
| |
| #include "tensorflow/core/platform/macros.h" |
| #include "tensorflow/core/platform/types.h" |
| |
| namespace tensorflow { |
| namespace strings { |
| |
| // Return a C++ string |
| extern string Printf(const char* format, ...) |
| // Tell the compiler to do printf format string checking. |
| TF_PRINTF_ATTRIBUTE(1, 2); |
| |
| // Append result to a supplied string |
| extern void Appendf(string* dst, const char* format, ...) |
| // Tell the compiler to do printf format string checking. |
| TF_PRINTF_ATTRIBUTE(2, 3); |
| |
| // Lower-level routine that takes a va_list and appends to a specified |
| // string. All other routines are just convenience wrappers around it. |
| extern void Appendv(string* dst, const char* format, va_list ap); |
| |
| } // namespace strings |
| } // namespace tensorflow |
| |
| #endif // TENSORFLOW_CORE_PLATFORM_STRINGPRINTF_H_ |