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### jsoncons::conv_error
```cpp
#include <jsoncons/json_exception.hpp>
```
<br>
`jsoncons::conv_error` defines an exception type for reporting serialization and deserialization failures.
std::exception
#### Constructors
conv_error(std::error_code ec);
conv_error(std::error_code ec, std::size_t position);
conv_error(std::error_code ec,
std::size_t line,
std::size_t column);
conv_error(const conv_error& other);
#### Member functions
std::size_t line() const noexcept
Returns the line number to the end of the text where the exception occurred.
Line numbers start at 1.
std::size_t column() const noexcept
Returns the column number to the end of the text where the exception occurred.
Column numbers start at 1.
const char* what() const noexcept
Constructs an error message, including line and column position
#### Inherited from std::system_error
const std::error_code code() const noexcept
Returns an error code for this exception
### Example
```cpp
#include <jsoncons/json.hpp>
using jsoncons::json;
int main()
{
string s = "[1,2,3,4,]";
try
{
jsoncons::json j = jsoncons::json::parse(s);
}
catch(const jsoncons::conv_error& e)
{
std::cout << "Caught conv_error with category "
<< e.code().category().name()
<< ", code " << e.code().value()
<< " and message " << e.what() << '\n';
}
}
```
Output:
```
Caught conv_error with category json_input, code 1 and message Unexpected value separator ',' at line 1 and column 10
```
|
