MongoDB C++ Driver mongocxx-3.10.1
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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/string/view_or_value-fwd.hpp>
20
21#include <bsoncxx/stdx/string_view.hpp>
22#include <bsoncxx/view_or_value.hpp>
23
24#include <bsoncxx/config/prelude.hpp>
25
26namespace bsoncxx {
27namespace v_noabi {
28namespace string {
29
38class view_or_value : public bsoncxx::v_noabi::view_or_value<stdx::string_view, std::string> {
39 public:
43 using bsoncxx::v_noabi::view_or_value<stdx::string_view, std::string>::view_or_value;
44
48 BSONCXX_INLINE view_or_value() = default;
49
57 BSONCXX_INLINE view_or_value(const char* str)
58 : bsoncxx::v_noabi::view_or_value<stdx::string_view, std::string>(stdx::string_view(str)) {}
59
70 BSONCXX_INLINE view_or_value(const std::string& str)
71 : bsoncxx::v_noabi::view_or_value<stdx::string_view, std::string>(stdx::string_view(str)) {}
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
122} // namespace v_noabi
123} // namespace bsoncxx
124
125namespace bsoncxx {
126namespace string {
127
128using ::bsoncxx::v_noabi::string::operator==;
129using ::bsoncxx::v_noabi::string::operator!=;
130
131} // namespace string
132} // namespace bsoncxx
133
134#include <bsoncxx/config/postlude.hpp>
Class representing a view-or-value variant type for strings.
Definition view_or_value.hpp:38
view_or_value()=default
Default constructor, equivalent to using an empty string.
const char * data() const
Call data() on this view_or_value's string_view.
view_or_value(const std::string &str)
Allow construction with an l-value reference to a std::string.
Definition view_or_value.hpp:70
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
view_or_value(const char *str)
Construct a string::view_or_value using a null-terminated const char *.
Definition view_or_value.hpp:57
view_or_value terminated() const
Return a string_view_or_value that is guaranteed to hold a null-terminated string.
Class representing a view-or-value variant type.
Definition view_or_value.hpp:32
operator stdx::string_view() const
This type may be used as a View.
Definition view_or_value.hpp:124
const View & view() const
Get a View for the type.
Definition view_or_value.hpp:133
The top-level namespace for bsoncxx library entities.
Definition element-fwd.hpp:19