https://ask.clojure.org/index.php/tag/bitwise https://ask.clojure.org/index.php/9518/why-does-bit-shift-left-rotate-bits-instead-discarding-bits <p><code>(bit-shift-left 0xfffffff0 4)</code> returns <code>0xffffff0f</code>, while I expect it to be <code>0xffffff00</code>. Similarly, <code>(bit-shift-left 0xfffffff0 8)</code> returns <code>0xfffff0ff</code>, etc.</p> <p> I checked the implementation, and <code>bit-shift-left</code> casts all its arguments to <code>Long</code>, then invokes Java's <code>&lt;&lt;</code> operator, which should discard higher bits instead of rotate them.</p> Java Interop https://ask.clojure.org/index.php/9518/why-does-bit-shift-left-rotate-bits-instead-discarding-bits Mon, 03 Aug 2020 05:35:41 +0000