# Intrinsics for Intel® Streaming SIMD Extensions 3 (Intel® SSE3)

The Intel® C++ intrinsics listed in this section are designed for the Intel® Pentium® 4 processor with Streaming SIMD Extensions 3 (Intel® SSE3). The prototypes for these intrinsics are in the pmmintrin.h header file.

To use these intrinsics, include the immintrin.h file as follows:

    #include <immintrin.h>

The topics in this section summarize these intrinsics.

Parent topic: Intrinsics

- Integer Vector Intrinsic
- Single-precision Floating-point Vector Intrinsics
- Double-precision Floating-point Vector Intrinsics
- Miscellaneous Intrinsics