BIT_SIZE(3I) Last changed: 1-6-98
NAMEBIT_SIZE - Returns the number of bits in an integer in the bit
manipulation model
SYNOPSISBIT_SIZE ([I=]i)
IMPLEMENTATION
UNICOS, UNICOS/mk, and IRIX systems
STANDARDS
Fortran 90
DESCRIPTION
The BIT_SIZE intrinsic function returns the number of bits s as
defined by the bit model. The bit model is described in the
MODELS(3I) man page. This intrinsic function accepts the following
argument:
i Must be of type integer
BIT_SIZE is an inquiry function. The name of this intrinsic cannot be
passed as an argument.
RETURN VALUES
The result is a scalar integer with the same kind type parameter as i.
The result has the value of the number of bits s in the model integer
defined in the DESCRIPTION section of this man page.
EXAMPLES
The following code fragment is run on several systems:
INTEGER(KIND=1) I1
INTEGER(KIND=2) I2
INTEGER(KIND=4) I4
INTEGER(KIND=8) I8
INTEGER ID
PRINT *,'BIT_SIZE I1=',BIT_SIZE(I1)
PRINT *,'BIT_SIZE I2=',BIT_SIZE(I2)
PRINT *,'BIT_SIZE I4=',BIT_SIZE(I4)
PRINT *,'BIT_SIZE I8=',BIT_SIZE(I8)
PRINT *,'BIT_SIZE ID=',BIT_SIZE(ID)
END
On IRIX systems the output is as follows:
BIT_SIZE I1= 8
BIT_SIZE I2= 16
BIT_SIZE I4= 32
BIT_SIZE I8= 64
BIT_SIZE ID= 32
On UNICOS systems, excluding CRAY T90 systems that support IEEE
floating-point arithmetic, the output is as follows:
BIT_SIZE I1= 8
BIT_SIZE I2= 16
BIT_SIZE I4= 32
BIT_SIZE I8= 64
BIT_SIZE ID= 64
On UNICOS/mk systems, the output is as follows:
BIT_SIZE I1= 8
BIT_SIZE I2= 16
BIT_SIZE I4= 32
BIT_SIZE I8= 64
BIT_SIZE ID= 64
On CRAY T90 systems that support IEEE floating-point arithmetic, the
output is as follows:
BIT_SIZE I1= 8
BIT_SIZE I2= 16
BIT_SIZE I4= 32
BIT_SIZE I8= 64
BIT_SIZE ID= 64
SEE ALSOMODELS(3I)
Intrinsic Procedures Reference Manual, publication SR-2138, for the
printed version of this man page.
