ISHFT(3I) Last changed: 1-6-98
NAMEISHFT - Performs a logical shift
SYNOPSISISHFT ([I=]i, [SHIFT=]shift)
IMPLEMENTATION
UNICOS, UNICOS/mk, and IRIX systems
STANDARDS
Fortran 90
DESCRIPTION
The ISHFT intrinsic function performs a logical shift. It accepts the
following arguments:
i Must be of type integer.
shift
Must be of type integer. The absolute value of shift must be
less than or equal to BIT_SIZE(i).
ISHFT is an elemental function. The name of this intrinsic cannot be
passed as an argument.
RETURN VALUES
The result type and type parameter are the same as i. The result has
the value obtained by shifting the bits of i by shift positions. If
shift is positive, the shift is to the left; if shift is negative, the
shift is to the right; and if shift is zero, no shift is performed.
Bits shifted out from the left or from the right, as appropriate, are
lost. Zeros are shifted in from the opposite end. The bit model
defines the interpretation of an integer value as a sequence of bits.
For more information on the bit model, see the MODELS(3I) man page.
EXAMPLESISHFT (3, 1) has the result 6.
SEE ALSOMODELS(3I)
Intrinsic Procedures Reference Manual, publication SR-2138, for the
printed version of this man page.