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xz: add a comment about using uint32_t as vli_type

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Signed-off-by: Lasse Collin <lasse.collin@tukaani.org>
Signed-off-by: Denys Vlasenko <vda.linux@googlemail.com>
This commit is contained in:
Lasse Collin 2013-02-27 16:32:03 +01:00 committed by Denys Vlasenko
parent 9056fcecbf
commit 18714d8460
1 changed files with 7 additions and 2 deletions
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9
archival/libarchive/unxz/xz_stream.h
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@ -32,8 +32,13 @@
#define FOOTER_MAGIC_SIZE 2
/*
* Variable-length integer can hold a 63-bit unsigned integer, or a special
* value to indicate that the value is unknown.
* Variable-length integer can hold a 63-bit unsigned integer or a special
* value indicating that the value is unknown.
*
* Experimental: vli_type can be defined to uint32_t to save a few bytes
* in code size (no effect on speed). Doing so limits the uncompressed and
* compressed size of the file to less than 256 MiB and may also weaken
* error detection slightly.
*/
typedef uint64_t vli_type;