1 /*
2  * Copyright (c) 2021 Huawei Device Co., Ltd.
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 #ifndef STRING_UTILS_H
17 #define STRING_UTILS_H
18 
19 #include <iostream>
20 
21 #include <hilog/log.h>
22 
23 #include "securec.h"
24 
25 
26 namespace OHOS {
27 namespace Rosen {
28 static constexpr HiviewDFX::HiLogLabel TAG = { LOG_CORE, 0, "StringUtils" };
29 constexpr int STRING_BUFFER_SIZE = 4096;
30 template <typename...Args>
AppendFormat(std::string & out,const char * fmt,Args &&...args)31 void AppendFormat(std::string& out, const char* fmt, Args&& ... args)
32 {
33     char buf[STRING_BUFFER_SIZE] = {0};
34     int len = ::snprintf_s(buf, sizeof(buf), sizeof(buf)-1, fmt, args...);
35     if (len <= 0) {
36         HiviewDFX::HiLog::Error(TAG, "failed to execute snprintf.");
37         return;
38     }
39     out += buf;
40 }
41 }
42 }
43 #endif