The following types are defined to represent vectors. NEON vector data types are named according to the following pattern:

 <type><size>x<number of lanes>_t

For example, int16x4_t is a vector containing four lanes each containing a signed 16-bit integer. Table 43 lists the vector data types.

Some intrinsics use an array of vector types of the form:

<type><size>x<number of lanes>x<length of array>_t 

These types are treated as ordinary C structures containing a single element named val.

An example structure definition is:

	struct int16x4x2_t
	{
	    int16x4_t val[2];
	};

There are array types defined for array lengths between 2 and 4, with any of the vector types listed in Table 43.