all Python 3operatorfunction

operator.irshift

in-place

In-place right shift: a >>= b.

Syntax

operator.irshift(a, b)

Assign the result: x = irshift(x, 1) — built-in types with >>= are immutable. For negative numbers the shift rounds towards minus infinity: -5 >> 1 gives -3. This matters in a "shift until zero" loop: a negative number never reaches zero by right shifts and gets stuck at -1.

Examples

import operator
print(operator.irshift(16, 2))   # → 4
print(operator.irshift(5, 10))   # → 0
color = 0xFF8800   # достать старший байт цвета
print(operator.irshift(color, 16))   # → 255
print(operator.irshift(-17, 2))   # → -5
print(operator.irshift(1, -1))   # → ValueError

See also

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