1 | /* Copyright 2015 The TensorFlow Authors. All Rights Reserved. |
2 | |
3 | Licensed under the Apache License, Version 2.0 (the "License"); |
4 | you may not use this file except in compliance with the License. |
5 | You may obtain a copy of the License at |
6 | |
7 | http://www.apache.org/licenses/LICENSE-2.0 |
8 | |
9 | Unless required by applicable law or agreed to in writing, software |
10 | distributed under the License is distributed on an "AS IS" BASIS, |
11 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
12 | See the License for the specific language governing permissions and |
13 | limitations under the License. |
14 | ==============================================================================*/ |
15 | |
16 | // Printf variants that place their output in a C++ string. |
17 | // |
18 | // Usage: |
19 | // string result = strings::Printf("%d %s\n", 10, "hello"); |
20 | // strings::Appendf(&result, "%d %s\n", 20, "there"); |
21 | |
22 | #ifndef TENSORFLOW_TSL_PLATFORM_STRINGPRINTF_H_ |
23 | #define TENSORFLOW_TSL_PLATFORM_STRINGPRINTF_H_ |
24 | |
25 | #include <stdarg.h> |
26 | |
27 | #include <string> |
28 | |
29 | #include "tensorflow/tsl/platform/macros.h" |
30 | #include "tensorflow/tsl/platform/types.h" |
31 | |
32 | namespace tsl { |
33 | namespace strings { |
34 | |
35 | // Return a C++ string |
36 | std::string Printf(const char* format, ...) |
37 | // Tell the compiler to do printf format string checking. |
38 | TF_PRINTF_ATTRIBUTE(1, 2); |
39 | |
40 | // Append result to a supplied string |
41 | void Appendf(std::string* dst, const char* format, ...) |
42 | // Tell the compiler to do printf format string checking. |
43 | TF_PRINTF_ATTRIBUTE(2, 3); |
44 | |
45 | // Lower-level routine that takes a va_list and appends to a specified |
46 | // string. All other routines are just convenience wrappers around it. |
47 | void Appendv(std::string* dst, const char* format, va_list ap); |
48 | |
49 | } // namespace strings |
50 | } // namespace tsl |
51 | |
52 | #endif // TENSORFLOW_TSL_PLATFORM_STRINGPRINTF_H_ |
53 | |