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__m128d | Microsoft Docs |
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11/04/2016 |
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language-reference |
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8082c7c0-a955-4b53-9d82-9bb91c623f72 |
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8 |
| author |
mikeblome |
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mblome |
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ghogen |
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Human Translation |
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3168772cbb7e8127523bc2fc2da5cc9b4f59beb8 |
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a801378bfe5840a86a22e151e4697e47ec1c9b9f |
The __m128d data type, for use with the Streaming SIMD Extensions 2 instructions intrinsics, is defined in emmintrin.h.
// data_types__m128d.cpp
#include <emmintrin.h>
int main() {
__m128d x;
}
Remarks
You should not access the __m128d fields directly. You can, however, see these types in the debugger. A variable of type __m128 maps to the XMM[0-7] registers.
Variables of type _m128d are automatically aligned on 16-byte boundaries.
The __m128d data type is not supported on ARM processors.
Keywords
Fundamental Types
Data Type Ranges