removed GPL mentions

eladc · May 9, 2020 · 8b0135c · 8b0135c
1 parent 324ff56
commit 8b0135c
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Showing 3 changed files with 8 additions and 31 deletions.
diff --git a/src/compact_hash.h b/src/compact_hash.h
@@ -33,11 +33,13 @@ struct CompactHashCell {
     if (max_value < val)
       errx(EX_SOFTWARE, "value len of %u too small for value of %llu",
            (unsigned int) value_bits, (unsigned long long int) val);
-    data = (uint32_t) (MurmurHash3(key) >> 32);
-    data &= ~((1 << value_bits) - 1);
-    data |= val;
+    data = (uint32_t) (MurmurHash3(key) >> 32); // why the shift?  why the hash?
+    data &= ~((1 << value_bits) - 1);           // keep only high bits
+    data |= val;                                // OR in value
   }
 
+  // value in the low bits
+  // hash of the key in the high bits
   uint32_t data;
 };
 

diff --git a/src/hyperloglogplus.cc b/src/hyperloglogplus.cc
@@ -1,20 +1,7 @@
 /*
  * Copyright 2017-2018, Florian Breitwieser
  *
- * This file is part of the KrakenUniq taxonomic sequence classification system.
- *
- * KrakenUniq is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * KrakenUniq is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Kraken.  If not, see <http://www.gnu.org/licenses/>.
+ * This file was originally developed for the KrakenUniq taxonomic classification system.
  */
 
 

diff --git a/src/hyperloglogplus.h b/src/hyperloglogplus.h
@@ -1,21 +1,9 @@
 /*
  * Copyright 2017-2018, Florian Breitwieser
  *
- * This file is part of the KrakenUniq taxonomic sequence classification system.
- *
- * KrakenUniq is free software: you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * KrakenUniq is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with Kraken.  If not, see <http://www.gnu.org/licenses/>.
+ * This file was originally developed for the KrakenUniq taxonomic classification system.
  */
+
 /*
  * Implementation of 64-bit HyperLogLog algorithm by Flajolet et al., 
  *   with sparse mode for increased precision with low cardinalities (Stefan Heule et al.), and