SWCompression Reference GzipError Enum Reference

GzipError

public enum GzipError: Error

Error happened during unarchiving gzip archive. It may indicate that either the data is damaged or it might not be gzip archive at all.

WrongMagic: first two bytes of archive were not 31 and 139.
WrongCompressionMethod: unsupported compression method (not 8 aka Deflate).
WrongFlags: unsupported flags (reserved flags weren’t 0).
WrongHeaderCRC: computed Cyclic Redundancy Check of archive’s header didn’t match the archive’s value.
WrongCRC: computed Cyclic Redundancy Check of uncompressed data didn’t match the archive’s value. Associated value contains already decompressed data.
WrongISize: size of uncompressed data modulo 2^32 didn’t match the archive’s value.

WrongMagic
First two bytes of archive were not 31 and 139.
Declaration
Swift

case WrongMagic
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WrongCompressionMethod
Compression method was other than 8 which is the only supported one.
Declaration
Swift

case WrongCompressionMethod
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WrongFlags
Reserved flags bits were not equal to 0.
Declaration
Swift

case WrongFlags
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WrongHeaderCRC
Computed CRC of header didn’t match the value stored in the archive.
Declaration
Swift

case WrongHeaderCRC
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WrongCRC
Computed CRC of uncompressed data didn’t match the value stored in the archive. Associated value contains already decompressed data.
Declaration
Swift

case WrongCRC(Data)
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WrongISize
Computed isize didn’t match the value stored in the archive.
Declaration
Swift

case WrongISize
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