1// Licensed to the Apache Software Foundation (ASF) under one
2// or more contributor license agreements. See the NOTICE file
3// distributed with this work for additional information
4// regarding copyright ownership. The ASF licenses this file
5// to you under the Apache License, Version 2.0 (the
6// "License"); you may not use this file except in compliance
7// with the License. You may obtain a copy of the License at
8//
9// http://www.apache.org/licenses/LICENSE-2.0
10//
11// Unless required by applicable law or agreed to in writing,
12// software distributed under the License is distributed on an
13// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
14// KIND, either express or implied. See the License for the
15// specific language governing permissions and limitations
16// under the License. template <typename T>
17
18#ifndef ARROW_UTIL_STRING_BUILDER_H
19#define ARROW_UTIL_STRING_BUILDER_H
20
21#include <sstream>
22#include <string>
23#include <utility>
24
25namespace arrow {
26namespace util {
27
28template <typename Head>
29void StringBuilderRecursive(std::stringstream& stream, Head&& head) {
30 stream << head;
31}
32
33template <typename Head, typename... Tail>
34void StringBuilderRecursive(std::stringstream& stream, Head&& head, Tail&&... tail) {
35 StringBuilderRecursive(stream, std::forward<Head>(head));
36 StringBuilderRecursive(stream, std::forward<Tail>(tail)...);
37}
38
39template <typename... Args>
40std::string StringBuilder(Args&&... args) {
41 std::stringstream stream;
42
43 StringBuilderRecursive(stream, std::forward<Args>(args)...);
44
45 return stream.str();
46}
47
48} // namespace util
49} // namespace arrow
50
51#endif // ARROW_UTIL_STRING_BUILDER_H
52