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construct/include/ircd/simd/strcat.h

69 lines
1.4 KiB
C++

// Matrix Construct
//
// Copyright (C) Matrix Construct Developers, Authors & Contributors
// Copyright (C) 2016-2021 Jason Volk <jason@zemos.net>
//
// Permission to use, copy, modify, and/or distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice is present in all copies. The
// full license for this software is available in the LICENSE file.
#pragma once
#define HAVE_IRCD_SIMD_STRCAT_H
namespace ircd::simd
{
template<class T>
T &_strcat(T &, const T) noexcept;
u8x16 &strcat(u8x16 &, const u8x16) noexcept;
u8x32 &strcat(u8x32 &, const u8x32) noexcept;
u8x64 &strcat(u8x64 &, const u8x64) noexcept;
}
inline ircd::simd::u8x64 &
ircd::simd::strcat(u8x64 &a,
const u8x64 b)
noexcept
{
return _strcat(a, b);
}
inline ircd::simd::u8x32 &
ircd::simd::strcat(u8x32 &a,
const u8x32 b)
noexcept
{
return _strcat(a, b);
}
inline ircd::simd::u8x16 &
ircd::simd::strcat(u8x16 &a,
const u8x16 b)
noexcept
{
return _strcat(a, b);
}
template<class T>
inline T &
ircd::simd::_strcat(T &a,
const T b)
noexcept
{
static_assert
(
sizeof_lane<T>() == 1,
"internal template; for 8-bit character basis only"
);
size_t j{0}, i
{
strlen(a)
};
while(b[j] && i < lanes<T>())
a[i++] = b[j++];
return a;
}