ISHFT — Shift bits#

ISHFT()#

ISHFT returns a value corresponding to I with all of the bits shifted SHIFT places. A value of SHIFT greater than zero corresponds to a left shift, a value of zero corresponds to no shift, and a value less than zero corresponds to a right shift. If the absolute value of SHIFT is greater than BIT_SIZE(I), the value is undefined. Bits shifted out from the left end or right end are lost; zeros are shifted in from the opposite end.

Parameters:

I – The type shall be INTEGER.
SHIFT – The type shall be INTEGER.

Returns:

The return value is of type INTEGER and of the same kind as I.

Standard:

Fortran 90 and later, has overloads that are GNU extensions

Class:

Elemental function

Syntax:

RESULT = ISHFT(I, SHIFT)

Specific names:

Name	Argument	Return type	Standard
`ISHFT(A)`	`INTEGER A`	`INTEGER`	Fortran 90 and later
`BSHFT(A)`	`INTEGER(1) A`	`INTEGER(1)`	GNU extension
`IISHFT(A)`	`INTEGER(2) A`	`INTEGER(2)`	GNU extension
`JISHFT(A)`	`INTEGER(4) A`	`INTEGER(4)`	GNU extension
`KISHFT(A)`	`INTEGER(8) A`	`INTEGER(8)`	GNU extension

See also:

ISHFTC