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<h1>Package hash</h1>
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<dd><code>import "hash"</code></dd>
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<p>
Package hash provides interfaces for hash functions.
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<dd><a href="index.html#Hash">type Hash</a></dd>
<dd><a href="index.html#Hash32">type Hash32</a></dd>
<dd><a href="index.html#Hash64">type Hash64</a></dd>
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<h4>Package files</h4>
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<a href="http://localhost:6060/src/hash/hash.go">hash.go</a>
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In the call graph viewer below, each node
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and its children are the functions it
calls&mdash;perhaps dynamically.
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The root nodes are the entry points of the
package: functions that may be called from
outside the package.
There may be non-exported or anonymous
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<h2 id="Hash">type <a href="http://localhost:6060/src/hash/hash.go?s=310:959#L1">Hash</a></h2>
<pre>type Hash interface {
<span class="comment">// Write (via the embedded io.Writer interface) adds more data to the running hash.</span>
<span class="comment">// It never returns an error.</span>
<a href="../io/index.html">io</a>.<a href="../io/index.html#Writer">Writer</a>
<span class="comment">// Sum appends the current hash to b and returns the resulting slice.</span>
<span class="comment">// It does not change the underlying hash state.</span>
Sum(b []<a href="../builtin/index.html#byte">byte</a>) []<a href="../builtin/index.html#byte">byte</a>
<span class="comment">// Reset resets the Hash to its initial state.</span>
Reset()
<span class="comment">// Size returns the number of bytes Sum will return.</span>
Size() <a href="../builtin/index.html#int">int</a>
<span class="comment">// BlockSize returns the hash&#39;s underlying block size.</span>
<span class="comment">// The Write method must be able to accept any amount</span>
<span class="comment">// of data, but it may operate more efficiently if all writes</span>
<span class="comment">// are a multiple of the block size.</span>
BlockSize() <a href="../builtin/index.html#int">int</a>
}</pre>
<p>
Hash is the common interface implemented by all hash functions.
</p>
<h2 id="Hash32">type <a href="http://localhost:6060/src/hash/hash.go?s=1037:1084#L24">Hash32</a></h2>
<pre>type Hash32 interface {
<a href="index.html#Hash">Hash</a>
Sum32() <a href="../builtin/index.html#uint32">uint32</a>
}</pre>
<p>
Hash32 is the common interface implemented by all 32-bit hash functions.
</p>
<h2 id="Hash64">type <a href="http://localhost:6060/src/hash/hash.go?s=1162:1209#L30">Hash64</a></h2>
<pre>type Hash64 interface {
<a href="index.html#Hash">Hash</a>
Sum64() <a href="../builtin/index.html#uint64">uint64</a>
}</pre>
<p>
Hash64 is the common interface implemented by all 64-bit hash functions.
</p>
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<a href="adler32/index.html">adler32</a>
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Package adler32 implements the Adler-32 checksum.
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Package crc32 implements the 32-bit cyclic redundancy check, or CRC-32, checksum.
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Package crc64 implements the 64-bit cyclic redundancy check, or CRC-64, checksum.
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<a href="fnv/index.html">fnv</a>
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Package fnv implements FNV-1 and FNV-1a, non-cryptographic hash functions created by Glenn Fowler, Landon Curt Noll, and Phong Vo.
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