Dan Albert | aac6b7c | 2015-03-16 10:08:46 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2011 The Android Open Source Project |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
Elliott Hughes | e3c5a2a | 2018-06-26 17:17:41 -0700 | [diff] [blame] | 17 | #pragma once |
Dan Albert | aac6b7c | 2015-03-16 10:08:46 -0700 | [diff] [blame] | 18 | |
| 19 | #include <stdarg.h> |
| 20 | #include <string> |
| 21 | |
| 22 | namespace android { |
| 23 | namespace base { |
| 24 | |
Dan Albert | 1a72eaa | 2015-07-09 20:35:09 +0000 | [diff] [blame] | 25 | // These printf-like functions are implemented in terms of vsnprintf, so they |
Pirama Arumuga Nainar | aec414c | 2018-06-25 11:48:58 -0700 | [diff] [blame] | 26 | // use the same attribute for compile-time format string checking. |
Dan Albert | 1a72eaa | 2015-07-09 20:35:09 +0000 | [diff] [blame] | 27 | |
Dan Albert | aac6b7c | 2015-03-16 10:08:46 -0700 | [diff] [blame] | 28 | // Returns a string corresponding to printf-like formatting of the arguments. |
Elliott Hughes | fa2ce92 | 2018-06-26 13:06:15 -0700 | [diff] [blame] | 29 | std::string StringPrintf(const char* fmt, ...) __attribute__((__format__(__printf__, 1, 2))); |
Dan Albert | aac6b7c | 2015-03-16 10:08:46 -0700 | [diff] [blame] | 30 | |
| 31 | // Appends a printf-like formatting of the arguments to 'dst'. |
| 32 | void StringAppendF(std::string* dst, const char* fmt, ...) |
Elliott Hughes | fa2ce92 | 2018-06-26 13:06:15 -0700 | [diff] [blame] | 33 | __attribute__((__format__(__printf__, 2, 3))); |
Dan Albert | aac6b7c | 2015-03-16 10:08:46 -0700 | [diff] [blame] | 34 | |
| 35 | // Appends a printf-like formatting of the arguments to 'dst'. |
Spencer Low | e33cc0c | 2015-05-13 00:02:55 -0700 | [diff] [blame] | 36 | void StringAppendV(std::string* dst, const char* format, va_list ap) |
Elliott Hughes | fa2ce92 | 2018-06-26 13:06:15 -0700 | [diff] [blame] | 37 | __attribute__((__format__(__printf__, 2, 0))); |
Dan Albert | aac6b7c | 2015-03-16 10:08:46 -0700 | [diff] [blame] | 38 | |
| 39 | } // namespace base |
| 40 | } // namespace android |