Vc  1.3.2-dev
SIMD Vector Classes for C++
simd_cast.h
1 /* This file is part of the Vc library. {{{
2 Copyright © 2014-2015 Matthias Kretz <kretz@kde.org>
3 
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26 }}}*/
27 
28 #ifndef VC_COMMON_SIMD_CAST_H_
29 #define VC_COMMON_SIMD_CAST_H_
30 
31 #include <type_traits>
32 #include "macros.h"
33 
34 // declare a bogus simd_cast function template in the global namespace to enable ADL for
35 // simd_cast<T>
36 template <class> void simd_cast();
37 
38 namespace Vc_VERSIONED_NAMESPACE
39 {
50 template <typename To, typename From>
51 Vc_INTRINSIC Vc_CONST To
52 simd_cast(From &&x, enable_if<std::is_same<To, Traits::decay<From>>::value> = nullarg)
53 {
54  return std::forward<From>(x);
55 }
56 
64 template <typename To> Vc_INTRINSIC Vc_CONST To simd_cast() { return To(); }
65 
66 } // namespace Vc
67 
68 #endif // VC_COMMON_SIMD_CAST_H_