Shinichiro Hamaji | 1d545aa | 2015-06-23 15:29:13 +0900 | [diff] [blame] | 1 | // Copyright 2015 Google Inc. 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 | |
Fumitoshi Ukai | 744bb2b | 2015-06-25 00:10:52 +0900 | [diff] [blame] | 15 | // +build ignore |
| 16 | |
Shinichiro Hamaji | 776ca30 | 2015-06-06 03:52:48 +0900 | [diff] [blame] | 17 | #include "stringprintf.h" |
| 18 | |
| 19 | #include <assert.h> |
| 20 | #include <stdarg.h> |
| 21 | |
| 22 | string StringPrintf(const char* format, ...) { |
| 23 | string str; |
| 24 | str.resize(128); |
| 25 | for (int i = 0; i < 2; i++) { |
| 26 | va_list args; |
| 27 | va_start(args, format); |
| 28 | int ret = vsnprintf(&str[0], str.size(), format, args); |
| 29 | va_end(args); |
| 30 | assert(ret >= 0); |
| 31 | if (static_cast<size_t>(ret) < str.size()) { |
| 32 | str.resize(ret); |
| 33 | return str; |
| 34 | } |
| 35 | str.resize(ret + 1); |
| 36 | } |
| 37 | assert(false); |
| 38 | } |