quantize() rounds each value in x to the scale declared by quantum.
The operation uses the active context's rounding mode, updates sticky
flags, and raises any enabled traps. The arguments follow normal vctrs
recycling rules.
Details
Reducing the scale is the explicit purpose of quantize() (and of
round() and signif(), both implemented on top of it), so the inexact
and rounded signals this commonly raises are not reported as warnings
the way other operations' signals are (see decimal_context()); they
still accumulate as sticky flags.