From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001
From: Valentin Popov <valentin@popov.link>
Date: Fri, 19 Jul 2024 16:37:58 +0400
Subject: Deleted vendor folder

---
 vendor/crc32fast/src/combine.rs | 77 -----------------------------------------
 1 file changed, 77 deletions(-)
 delete mode 100644 vendor/crc32fast/src/combine.rs

(limited to 'vendor/crc32fast/src/combine.rs')

diff --git a/vendor/crc32fast/src/combine.rs b/vendor/crc32fast/src/combine.rs
deleted file mode 100644
index 4dd0ee0..0000000
--- a/vendor/crc32fast/src/combine.rs
+++ /dev/null
@@ -1,77 +0,0 @@
-const GF2_DIM: usize = 32;
-
-fn gf2_matrix_times(mat: &[u32; GF2_DIM], mut vec: u32) -> u32 {
-    let mut sum = 0;
-    let mut idx = 0;
-    while vec > 0 {
-        if vec & 1 == 1 {
-            sum ^= mat[idx];
-        }
-        vec >>= 1;
-        idx += 1;
-    }
-    return sum;
-}
-
-fn gf2_matrix_square(square: &mut [u32; GF2_DIM], mat: &[u32; GF2_DIM]) {
-    for n in 0..GF2_DIM {
-        square[n] = gf2_matrix_times(mat, mat[n]);
-    }
-}
-
-pub(crate) fn combine(mut crc1: u32, crc2: u32, mut len2: u64) -> u32 {
-    let mut row: u32;
-    let mut even = [0u32; GF2_DIM]; /* even-power-of-two zeros operator */
-    let mut odd = [0u32; GF2_DIM]; /* odd-power-of-two zeros operator */
-
-    /* degenerate case (also disallow negative lengths) */
-    if len2 <= 0 {
-        return crc1;
-    }
-
-    /* put operator for one zero bit in odd */
-    odd[0] = 0xedb88320; /* CRC-32 polynomial */
-    row = 1;
-    for n in 1..GF2_DIM {
-        odd[n] = row;
-        row <<= 1;
-    }
-
-    /* put operator for two zero bits in even */
-    gf2_matrix_square(&mut even, &odd);
-
-    /* put operator for four zero bits in odd */
-    gf2_matrix_square(&mut odd, &even);
-
-    /* apply len2 zeros to crc1 (first square will put the operator for one
-       zero byte, eight zero bits, in even) */
-    loop {
-        /* apply zeros operator for this bit of len2 */
-        gf2_matrix_square(&mut even, &odd);
-        if len2 & 1 == 1 {
-            crc1 = gf2_matrix_times(&even, crc1);
-        }
-        len2 >>= 1;
-
-        /* if no more bits set, then done */
-        if len2 == 0 {
-            break;
-        }
-
-        /* another iteration of the loop with odd and even swapped */
-        gf2_matrix_square(&mut odd, &even);
-        if len2 & 1 == 1 {
-            crc1 = gf2_matrix_times(&odd, crc1);
-        }
-        len2 >>= 1;
-
-        /* if no more bits set, then done */
-        if len2 == 0 {
-            break;
-        }
-    }
-
-    /* return combined crc */
-    crc1 ^= crc2;
-    return crc1;
-}
-- 
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