mirror of
https://github.com/nlohmann/json.git
synced 2026-10-14 02:07:14 +00:00
deploy: 40a62947d3
This commit is contained in:
1 parent
79119509a9
commit
22fba27145
555 files changed
+17342
-1394
No files matched your search
@@ -68,13 +68,41 @@ Linear.
|
||||
The example demonstrates comparing several JSON types.
|
||||
|
||||
```cpp
|
||||
--8<-- "examples/operator__notequal.cpp"
|
||||
#include <iostream>
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
using json = nlohmann::json;
|
||||
|
||||
int main()
|
||||
{
|
||||
// create several JSON values
|
||||
json array_1 = {1, 2, 3};
|
||||
json array_2 = {1, 2, 4};
|
||||
json object_1 = {{"A", "a"}, {"B", "b"}};
|
||||
json object_2 = {{"B", "b"}, {"A", "a"}};
|
||||
json number_1 = 17;
|
||||
json number_2 = 17.000000000000001L;
|
||||
json string_1 = "foo";
|
||||
json string_2 = "bar";
|
||||
|
||||
// output values and comparisons
|
||||
std::cout << std::boolalpha;
|
||||
std::cout << array_1 << " != " << array_2 << " " << (array_1 != array_2) << '\n';
|
||||
std::cout << object_1 << " != " << object_2 << " " << (object_1 != object_2) << '\n';
|
||||
std::cout << number_1 << " != " << number_2 << " " << (number_1 != number_2) << '\n';
|
||||
std::cout << string_1 << " != " << string_2 << " " << (string_1 != string_2) << '\n';
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```json
|
||||
--8<-- "examples/operator__notequal.output"
|
||||
[1,2,3] != [1,2,4] true
|
||||
{"A":"a","B":"b"} != {"A":"a","B":"b"} false
|
||||
17 != 17.0 false
|
||||
"foo" != "bar" true
|
||||
|
||||
```
|
||||
|
||||
??? example "Example: (2) compare JSON values with `#!cpp nullptr`"
|
||||
@@ -82,13 +110,40 @@ Linear.
|
||||
The example demonstrates comparing several JSON types against the null pointer (JSON `#!json null`).
|
||||
|
||||
```cpp
|
||||
--8<-- "examples/operator__notequal__nullptr_t.cpp"
|
||||
#include <iostream>
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
using json = nlohmann::json;
|
||||
|
||||
int main()
|
||||
{
|
||||
// create several JSON values
|
||||
json array = {1, 2, 3};
|
||||
json object = {{"A", "a"}, {"B", "b"}};
|
||||
json number = 17;
|
||||
json string = "foo";
|
||||
json null;
|
||||
|
||||
// output values and comparisons
|
||||
std::cout << std::boolalpha;
|
||||
std::cout << array << " != nullptr " << (array != nullptr) << '\n';
|
||||
std::cout << object << " != nullptr " << (object != nullptr) << '\n';
|
||||
std::cout << number << " != nullptr " << (number != nullptr) << '\n';
|
||||
std::cout << string << " != nullptr " << (string != nullptr) << '\n';
|
||||
std::cout << null << " != nullptr " << (null != nullptr) << '\n';
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```json
|
||||
--8<-- "examples/operator__notequal__nullptr_t.output"
|
||||
[1,2,3] != nullptr true
|
||||
{"A":"a","B":"b"} != nullptr true
|
||||
17 != nullptr true
|
||||
"foo" != nullptr true
|
||||
null != nullptr false
|
||||
|
||||
```
|
||||
|
||||
## See also
|
||||
|
||||
Reference in new issue
Block a user