AsnDecoder.TryReadInt64 Method
Definition
Important
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Attempts to read an Integer value from source with a specified tag under the specified encoding rules as a signed 64-bit value.
public static bool TryReadInt64 (ReadOnlySpan<byte> source, System.Formats.Asn1.AsnEncodingRules ruleSet, out long value, out int bytesConsumed, System.Formats.Asn1.Asn1Tag? expectedTag = default);static member TryReadInt64 : ReadOnlySpan<byte> * System.Formats.Asn1.AsnEncodingRules * int64 * int * Nullable<System.Formats.Asn1.Asn1Tag> -> boolPublic Shared Function TryReadInt64 (source As ReadOnlySpan(Of Byte), ruleSet As AsnEncodingRules, ByRef value As Long, ByRef bytesConsumed As Integer, Optional expectedTag As Nullable(Of Asn1Tag) = Nothing) As BooleanParameters
- source
- ReadOnlySpan<Byte>
The buffer containing encoded data.
- ruleSet
- AsnEncodingRules
The encoding constraints to use when interpreting the data.
- value
- Int64
On success, receives the interpreted numeric value. This parameter is treated as uninitialized.
- bytesConsumed
- Int32
When this method returns, the total number of bytes for the encoded value. This parameter is treated as uninitialized.
The tag to check for before reading, or null for the default tag (Universal 2).
Returns
true if the Integer represents value is between Int64.MinValue and Int64.MaxValue, inclusive; otherwise, false.
Exceptions
ruleSet is not defined.
The next value does not have the correct tag.
-or-
The length encoding is not valid under the current encoding rules.
-or-
The contents are not valid under the current encoding rules.
