The Intel® C++ Class Libraries are functions abstracted from the instruction extensions available on Intel processors as specified in the table that follows:
| Header File | Extension Set | Available on These Processors |
|---|---|---|
| ivec.h | MMX™ technology | Intel® Pentium® processor with MMX™ technology, Intel® Pentium® II processor, Intel® Pentium® III processor, Intel® Pentium® 4 processor, Intel® Xeon® processor, and Intel® Itanium® processor |
| fvec.h | Streaming SIMD Extensions | Intel Pentium III processor, Intel Pentium 4 processor, Intel Xeon processor, and Intel Itanium processor |
| dvec.h | Streaming SIMD Extensions 2 | Intel Pentium 4 processor and Intel Xeon processors |