json/docs/examples/parse__allow_exceptions.cpp
Ivor Wanders e5fb288b90 Capture exceptions by const& in docs.
Performed with:
```
find ./ -type f -name *.cpp -print0 | xargs -0 sed -i -e 's|catch (json|catch (const json|g'
```
2023-08-04 11:38:56 -04:00

37 lines
668 B
C++

#include <iostream>
#include <nlohmann/json.hpp>
using json = nlohmann::json;
int main()
{
// an invalid JSON text
std::string text = R"(
{
"key": "value without closing quotes
}
)";
// parse with exceptions
try
{
json j = json::parse(text);
}
catch (const json::parse_error& e)
{
std::cout << e.what() << std::endl;
}
// parse without exceptions
json j = json::parse(text, nullptr, false);
if (j.is_discarded())
{
std::cout << "the input is invalid JSON" << std::endl;
}
else
{
std::cout << "the input is valid JSON: " << j << std::endl;
}
}