# Index of exceptions

B
Bits_error [IO] |
D
Different_list_size [ExtList.List] | `Different_list_size` is raised when applying functions such as `iter2` on two lists having different size.
E
Empty [Dllist] |
Empty_list [RefList] |
Empty_list [ExtList.List] | `Empty_list` is raised when an operation applied on an empty list is invalid : `hd` for example.
Error [Unzip] |
G
Global_not_initialized [Global] | Raised when a global variable is accessed without first having been assigned a value.
I
Input_closed [IO] | This exception is raised when reading on a closed input.
Invalid_arg [DynArray] | When an operation on an array fails, `Invalid_arg` is raised.
Invalid_char [Base64] | This exception is raised when reading an invalid character from a base64 input.
Invalid_index [RefList] |
Invalid_index [ExtList.List] | `Invalid_index` is raised when an indexed access on a list is out of list bounds.
Invalid_string [ExtString] |
Invalid_string [ExtLib] |
Invalid_table [Base64] | This exception is raised if the encoding or decoding table size is not correct.
M
Malformed_code [UTF8] |
N
Negative_index [BitSet] | When a negative bit value is used for one of the BitSet functions, this exception is raised with the name of the function.
No_more_elements [Enum] | This exception shall be raised by the `next` function of `make` or `from` when no more elements can be enumerated, it shall not be raised by any function which is an argument to any other function specified in the interface.
No_more_input [IO] | This exception is raised when reading on an input with the `read` or `nread` functions while there is no available token to read.
No_value [Option] | Raised when calling `get None`.
No_value [OptParse.Opt] | `No_value` gets raised by `OptParse.Opt.get` when an option value is not available.
O
Option_conflict [OptParse.OptParser] | `Option_conflict name` is raised by `OptParse.OptParser.add` when two different options are added with identical names.
Option_error [OptParse.Opt] | This exception signals that an option value is invalid.
Option_help [OptParse.Opt] | When an option wants to display a usage message, this exception may be raised.
Out_of_range [UChar] |
Output_closed [IO] | This exception is raised when reading on a closed output.
Overflow [IO] | Exception raised when a read or write operation cannot be completed.