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nlohmann
79 lines
2.1 KiB
Markdown
79 lines
2.1 KiB
Markdown
# <small>nlohmann::basic_json::</small>invalid_iterator
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```cpp
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class invalid_iterator : public exception;
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```
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This exception is thrown if iterators passed to a library function do not match the expected semantics.
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Exceptions have ids 2xx (see [list of iterator errors](../../home/exceptions.md#iterator-errors)).
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```mermaid
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classDiagram
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direction LR
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class std_exception ["std::exception"] {
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<<interface>>
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}
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class json_exception ["basic_json::exception"] {
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+const int id
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+const char* what() const
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}
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class json_parse_error ["basic_json::parse_error"] {
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+const std::size_t byte
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}
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class json_invalid_iterator ["basic_json::invalid_iterator"]
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class json_type_error ["basic_json::type_error"]
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class json_out_of_range ["basic_json::out_of_range"]
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class json_other_error ["basic_json::other_error"]
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std_exception <|-- json_exception
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json_exception <|-- json_parse_error
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json_exception <|-- json_invalid_iterator
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json_exception <|-- json_type_error
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json_exception <|-- json_out_of_range
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json_exception <|-- json_other_error
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style json_invalid_iterator fill:#CCCCFF
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```
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## Member functions
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- **what** - returns explanatory string
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## Member variables
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- **id** - the id of the exception
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## Examples
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??? example
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The following code shows how a `invalid_iterator` exception can be caught.
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```cpp
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--8<-- "examples/invalid_iterator.cpp"
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```
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Output:
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```json
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--8<-- "examples/invalid_iterator.output"
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```
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## See also
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- [`exception`](exception.md) for the base class of all exceptions thrown by the library
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- [List of iterator errors](../../home/exceptions.md#iterator-errors)
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- [`parse_error`](parse_error.md) for exceptions indicating a parse error
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- [`type_error`](type_error.md) for exceptions indicating executing a member function with a wrong type
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- [`out_of_range`](out_of_range.md) for exceptions indicating access out of the defined range
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- [`other_error`](other_error.md) for exceptions indicating other library errors
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## Version history
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- Since version 3.0.0.
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