# Function vec_slv

Source

    pub unsafe fn vec_slv(
        a: vector_unsigned_char,
        b: vector_unsigned_char,
    ) -> vector_unsigned_char

🔬This is a nightly-only experimental API. (`stdarch_powerpc` #111145)
Available on (PowerPC or PowerPC-64) and target feature `power9-altivec` and PowerPC-64 only.
Expand description

Vector Shift Left Variable

### §Result value

Let v be a 17-byte vector formed from a in bytes `[0:15]` and a zero byte in element 16. Then each byte element i of r is determined as follows. The start bit sb is obtained from bits 5:7 of byte element i of b. Then the contents of bits sb:sb+7 of the halfword in byte elements i:i+1 of v are placed into byte element i of r.

### §Endian considerations

All bit and byte element numbers are specified in big-endian order. This intrinsic is not endian-neutral.