From 2844690385ba5b561f7e3bb1ba579409fe47a5ab Mon Sep 17 00:00:00 2001
From: Jack Lloyd <lloyd@randombit.net>
Date: Tue, 27 Oct 2015 16:46:43 -0400
Subject: Remove unused xor_buf.h (internal header merged into mem_ops.h)

---
 src/lib/utils/xor_buf.h | 144 ------------------------------------------------
 1 file changed, 144 deletions(-)
 delete mode 100644 src/lib/utils/xor_buf.h

(limited to 'src')

diff --git a/src/lib/utils/xor_buf.h b/src/lib/utils/xor_buf.h
deleted file mode 100644
index 23151f72e..000000000
--- a/src/lib/utils/xor_buf.h
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
-* XOR operations
-* (C) 1999-2008 Jack Lloyd
-*
-* Botan is released under the Simplified BSD License (see license.txt)
-*/
-
-#ifndef BOTAN_XOR_BUF_H__
-#define BOTAN_XOR_BUF_H__
-
-#include <botan/types.h>
-#include <vector>
-
-namespace Botan {
-
-/**
-* XOR arrays. Postcondition out[i] = in[i] ^ out[i] forall i = 0...length
-* @param out the input/output buffer
-* @param in the read-only input buffer
-* @param length the length of the buffers
-*/
-template<typename T>
-void xor_buf(T out[], const T in[], size_t length)
-   {
-   while(length >= 8)
-      {
-      out[0] ^= in[0]; out[1] ^= in[1];
-      out[2] ^= in[2]; out[3] ^= in[3];
-      out[4] ^= in[4]; out[5] ^= in[5];
-      out[6] ^= in[6]; out[7] ^= in[7];
-
-      out += 8; in += 8; length -= 8;
-      }
-
-   for(size_t i = 0; i != length; ++i)
-      out[i] ^= in[i];
-   }
-
-/**
-* XOR arrays. Postcondition out[i] = in[i] ^ in2[i] forall i = 0...length
-* @param out the output buffer
-* @param in the first input buffer
-* @param in2 the second output buffer
-* @param length the length of the three buffers
-*/
-template<typename T> void xor_buf(T out[],
-                                  const T in[],
-                                  const T in2[],
-                                  size_t length)
-   {
-   while(length >= 8)
-      {
-      out[0] = in[0] ^ in2[0];
-      out[1] = in[1] ^ in2[1];
-      out[2] = in[2] ^ in2[2];
-      out[3] = in[3] ^ in2[3];
-      out[4] = in[4] ^ in2[4];
-      out[5] = in[5] ^ in2[5];
-      out[6] = in[6] ^ in2[6];
-      out[7] = in[7] ^ in2[7];
-
-      in += 8; in2 += 8; out += 8; length -= 8;
-      }
-
-   for(size_t i = 0; i != length; ++i)
-      out[i] = in[i] ^ in2[i];
-   }
-
-#if BOTAN_TARGET_UNALIGNED_MEMORY_ACCESS_OK
-
-template<>
-inline void xor_buf<byte>(byte out[], const byte in[], size_t length)
-   {
-   while(length >= 8)
-      {
-      *reinterpret_cast<u64bit*>(out) ^= *reinterpret_cast<const u64bit*>(in);
-      out += 8; in += 8; length -= 8;
-      }
-
-   for(size_t i = 0; i != length; ++i)
-      out[i] ^= in[i];
-   }
-
-template<>
-inline void xor_buf<byte>(byte out[],
-                          const byte in[],
-                          const byte in2[],
-                          size_t length)
-   {
-   while(length >= 8)
-      {
-      *reinterpret_cast<u64bit*>(out) =
-         *reinterpret_cast<const u64bit*>(in) ^
-         *reinterpret_cast<const u64bit*>(in2);
-
-      in += 8; in2 += 8; out += 8; length -= 8;
-      }
-
-   for(size_t i = 0; i != length; ++i)
-      out[i] = in[i] ^ in2[i];
-   }
-
-#endif
-
-template<typename Alloc, typename Alloc2>
-void xor_buf(std::vector<byte, Alloc>& out,
-             const std::vector<byte, Alloc2>& in,
-             size_t n)
-   {
-   xor_buf(out.data(), in.data(), n);
-   }
-
-template<typename Alloc>
-void xor_buf(std::vector<byte, Alloc>& out,
-             const byte* in,
-             size_t n)
-   {
-   xor_buf(out.data(), in, n);
-   }
-
-template<typename Alloc, typename Alloc2>
-void xor_buf(std::vector<byte, Alloc>& out,
-             const byte* in,
-             const std::vector<byte, Alloc2>& in2,
-             size_t n)
-   {
-   xor_buf(out.data(), in, in2.data(), n);
-   }
-
-template<typename T, typename Alloc, typename Alloc2>
-std::vector<T, Alloc>&
-operator^=(std::vector<T, Alloc>& out,
-           const std::vector<T, Alloc2>& in)
-   {
-   if(out.size() < in.size())
-      out.resize(in.size());
-
-   xor_buf(out.data(), in.data(), in.size());
-   return out;
-   }
-
-}
-
-#endif
-- 
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