1# basic_json::out_of_range 2 3```cpp 4class out_of_range : public exception; 5``` 6 7This exception is thrown in case a library function is called on an input parameter that exceeds the expected range, for 8instance in case of array indices or nonexisting object keys. 9 10Exceptions have ids 4xx. 11 12```plantuml 13std::exception <|-- basic_json::exception 14basic_json::exception <|-- basic_json::parse_error 15basic_json::exception <|-- basic_json::invalid_iterator 16basic_json::exception <|-- basic_json::type_error 17basic_json::exception <|-- basic_json::out_of_range 18basic_json::exception <|-- basic_json::other_error 19 20interface std::exception {} 21 22class basic_json::exception { 23 + const int id 24 + const char* what() const 25} 26 27class basic_json::parse_error { 28 + const std::size_t byte 29} 30 31class basic_json::out_of_range #FFFF00 {} 32``` 33 34## Member functions 35 36- **what** - returns explanatory string 37 38## Member variables 39 40- **id** - the id of the exception 41 42## Example 43 44??? example 45 46 The following code shows how a `out_of_range` exception can be caught. 47 48 ```cpp 49 --8<-- "examples/out_of_range.cpp" 50 ``` 51 52 Output: 53 54 ```json 55 --8<-- "examples/out_of_range.output" 56 ``` 57 58## Version history 59 60- Since version 3.0.0. 61