vec_cpsgn

Purpose

Returns a vector by copying the sign of the elements in vector a to the sign of the corresponding elements in vector b.

Syntax

d=vec_cpsgn(a, b)

Result and argument types

The following table describes the types of the returned value and the function arguments.

Result value

The values of the elements of the result are obtained by copying the sign of the elements in a to the sign of the corresponding elements in b.

Formula

d[0] = (double) { sign(a[0]), mantissa(b[0]), exponent(b[0]) }
d[1] = (double) { sign(a[1]), mantissa(b[1]), exponent(b[1]) }
d[2] = (double) { sign(a[2]), mantissa(b[2]), exponent(b[2]) }
d[3] = (double) { sign(a[3]), mantissa(b[3]), exponent(b[3]) }