mirror of
https://github.com/nlohmann/json.git
synced 2026-10-13 09:47:12 +00:00
deploy: 40a62947d3
This commit is contained in:
1 parent
79119509a9
commit
22fba27145
555 files changed
+17342
-1394
No files matched your search
@@ -69,13 +69,35 @@ constructor.
|
||||
The following code shows how arbitrary library exceptions can be caught.
|
||||
|
||||
```cpp
|
||||
--8<-- "examples/exception.cpp"
|
||||
#include <iostream>
|
||||
#include <nlohmann/json.hpp>
|
||||
|
||||
using json = nlohmann::json;
|
||||
|
||||
int main()
|
||||
{
|
||||
try
|
||||
{
|
||||
// calling at() for a non-existing key
|
||||
json j = {{"foo", "bar"}};
|
||||
json k = j.at("non-existing");
|
||||
}
|
||||
catch (const json::exception& e)
|
||||
{
|
||||
// output exception information
|
||||
std::cout << "message: " << e.what() << '\n'
|
||||
<< "exception id: " << e.id << std::endl;
|
||||
}
|
||||
}
|
||||
|
||||
```
|
||||
|
||||
Output:
|
||||
|
||||
```json
|
||||
--8<-- "examples/exception.output"
|
||||
message: [json.exception.out_of_range.403] key 'non-existing' not found
|
||||
exception id: 403
|
||||
|
||||
```
|
||||
|
||||
## See also
|
||||
|
||||
Reference in new issue
Block a user