MongoDB C++ Driver mongocxx-3.0.3
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view_or_value.hpp
1// Copyright 2015 MongoDB Inc.
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#pragma once
16
17#include <string>
18
19#include <bsoncxx/stdx/string_view.hpp>
20#include <bsoncxx/view_or_value.hpp>
21
22#include <bsoncxx/config/prelude.hpp>
23
24namespace bsoncxx {
25BSONCXX_INLINE_NAMESPACE_BEGIN
26namespace string {
27
36class BSONCXX_API view_or_value : public bsoncxx::view_or_value<stdx::string_view, std::string> {
37 public:
41 using bsoncxx::view_or_value<stdx::string_view, std::string>::view_or_value;
42
46 BSONCXX_INLINE view_or_value() = default;
47
55 BSONCXX_INLINE view_or_value(const char* str)
56 : bsoncxx::view_or_value<stdx::string_view, std::string>(stdx::string_view(str)) {
57 }
58
69 BSONCXX_INLINE view_or_value(const std::string& str)
70 : bsoncxx::view_or_value<stdx::string_view, std::string>(stdx::string_view(str)) {
71 }
72
84
92 const char* data() const;
93};
94
102BSONCXX_INLINE bool operator==(const view_or_value& lhs, const char* rhs) {
103 return lhs.view() == stdx::string_view(rhs);
104}
105
106BSONCXX_INLINE bool operator!=(const view_or_value& lhs, const char* rhs) {
107 return !(lhs == rhs);
108}
109
110BSONCXX_INLINE bool operator==(const char* lhs, const view_or_value& rhs) {
111 return rhs == lhs;
112}
113
114BSONCXX_INLINE bool operator!=(const char* lhs, const view_or_value& rhs) {
115 return !(rhs == lhs);
116}
120
121} // namespace string
122BSONCXX_INLINE_NAMESPACE_END
123} // namespace bsoncxx
124
125#include <bsoncxx/config/postlude.hpp>
Class representing a view-or-value variant type for strings.
Definition view_or_value.hpp:36
view_or_value(const std::string &str)
Allow construction with an l-value reference to a std::string.
Definition view_or_value.hpp:69
view_or_value()=default
Default constructor, equivalent to using an empty string.
view_or_value terminated() const
Return a string_view_or_value that is guaranteed to hold a null-terminated string.
bool operator==(const view_or_value &lhs, const char *rhs)
Comparison operators for comparing string::view_or_value directly with const char *.
Definition view_or_value.hpp:102
const char * data() const
Call data() on this view_or_value's string_view.
view_or_value(const char *str)
Construct a string::view_or_value using a null-terminated const char *.
Definition view_or_value.hpp:55
Class representing a view-or-value variant type.
Definition view_or_value.hpp:30
const View & view() const
Get a View for the type.
Definition view_or_value.hpp:135