Rose::BitOps::shiftRightSigned

Right shift low bits without affecting other bits.

Synopsis

Declared in <src/Rose/BitOps.h>

template<typename Unsigned>
Unsigned
shiftRightSigned(
    Unsigned src,
    size_t w,
    size_t n);

Description

Right shift the low‐order w bits by n without affecting higher order bits. The width, w, must not be larger than the src width. If is greater than or equal to w then the w low order bits are set or cleared depending on bit w‐1. Otherwise, the n low order bits are discarded and the n new bits introduced at index w‐1 are either zero or one depending on bit w‐1.

Return Value

Updated value.

Parameters

Name	Description
src	Input value.
w	Width of the low‐order region.
n	Shift count.

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