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| author | June McEnroe <june@causal.agency> | 2018-11-11 15:35:56 -0500 |
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| committer | June McEnroe <june@causal.agency> | 2018-11-11 15:35:56 -0500 |
| commit | 482654692b90e96110356ee23a3a612a62fb4414 (patch) | |
| tree | 7cf04608a0b42c4a96d1b7126aedcc3114b7abe8 /adler32_combine.3 | |
| parent | Add missing .In zlib.h (diff) | |
| download | zlib-man-pages-482654692b90e96110356ee23a3a612a62fb4414.tar.gz zlib-man-pages-482654692b90e96110356ee23a3a612a62fb4414.zip | |
Separate out adler32_combine.3
Diffstat (limited to 'adler32_combine.3')
| -rw-r--r--[l---------] | adler32_combine.3 | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/adler32_combine.3 b/adler32_combine.3 index 630dd96..883ddb2 120000..100644 --- a/adler32_combine.3 +++ b/adler32_combine.3 @@ -1 +1,53 @@ -adler32.3 \ No newline at end of file +.Dd November 9, 2018 +.Dt ADLER32_COMBINE 3 +.Os +. +.Sh NAME +.Nm adler32_combine +.Nd combine Adler-32 checksums +. +.Sh LIBRARY +.Lb libz +. +.Sh SYNOPSIS +.In zlib.h +.Ft uLong +.Fn adler32_combine "uLong adler1" "uLong adler2" "z_off_t len2" +. +.Sh DESCRIPTION +Combine two Adler-32 checksums into one. +For two sequences of bytes, +.Va seq1 +and +.Va seq2 +with lengths +.Va len1 +and +.Va len2 , +Adler-32 checksums were calculated for each, +.Va adler1 +and +.Va adler2 . +.Fn adler32_combine +returns the Adler-32 checksum of +.Va seq1 +and +.Va seq2 +concatenated, +requiring only +.Fa adler1 , +.Fa adler2 , +and +.Fa len2 . +Note that the +.Vt z_off_t +type +.Pq like Vt off_t +is a signed integer. +If +.Fa len2 +is negative, +the result has no meaning or utility. +. +.Sh SEE ALSO +.Xr adler32 3 |