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package ssl
type t = private {library_number : int;(*Identifies the OpenSSL sub-library that generated this error. Library values are defined in https://github.com/openssl/openssl/blob/openssl-3.0.0/include/openssl/err.h.in#L72
*)reason_code : int;(*The reason code is the information about what went wrong.
*)lib : string option;(*The library name that generated the error.
*)reason : string option;(*The reason string for the error message.
*)
}The error code returned by ERR_get_error() consists of a library number, function code and reason code.
Each sub-library of OpenSSL has a unique library number; function and reason codes are unique within each sub-library. Note that different libraries may use the same value to signal different functions and reasons.
val get_error : unit -> tRetrieve the earliest error from the error queue then it removes the entry. Returns the code and library and reason strings
val peek_error : unit -> tRetrieve the earliest error from the error queue without modifying it. Returns the code and library and reason strings
val peek_last_error : unit -> tRetrieves the latest error code from the thread's error queue without modifying it. Returns the code and library and reason strings.