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- DIGITS(3I) Last changed: 1-6-98
-
-
- NNAAMMEE
- DDIIGGIITTSS - Returns the number of significant digits
-
- SSYYNNOOPPSSIISS
- DDIIGGIITTSS (([XX==]_x))
-
- IIMMPPLLEEMMEENNTTAATTIIOONN
- UNICOS, UNICOS/mk, and IRIX systems
-
- SSTTAANNDDAARRDDSS
- Fortran 90
-
- DDEESSCCRRIIPPTTIIOONN
- The DDIIGGIITTSS intrinsic function returns the number of significant digits
- in the model representing numbers of the same type and kind type
- parameter as the argument. The number returned is the number of
- significant radix digits (base 2 digits), not decimal digits. It
- accepts the following argument:
-
- _x Must be of type integer or real. It can be scalar or array
- valued.
-
- DDIIGGIITTSS is an inquiry function. The name of this intrinsic cannot be
- passed as an argument.
-
- RREETTUURRNN VVAALLUUEESS
- The result type is an integer scalar. The result has the value _q if _x
- is of type integer. It has the value _p if _x is of type real. The
- values _q and _p are defined on the MMOODDEELLSS(3I) man page.
-
- EEXXAAMMPPLLEESS
- The following code fragment was run on several systems:
-
- INTEGER(KIND=1) i1
- INTEGER(KIND=2) i2
- INTEGER(KIND=4) i4
- INTEGER(KIND=8) i8
- INTEGER id
- PRINT *,'DIGITS i1=',DIGITS(i1)
- PRINT *,'DIGITS i2=',DIGITS(i2)
- PRINT *,'DIGITS i4=',DIGITS(i4)
- PRINT *,'DIGITS i8=',DIGITS(i8)
- PRINT *,'DIGITS id=',DIGITS(id)
- END
-
- IRIX systems generated the following results:
-
- DIGITS i1= 7
- DIGITS i2= 15
- DIGITS i4= 31
- DIGITS i8= 63
- DIGITS id= 31
-
- CRAY T90 systems that support IEEE floating-point arithmetic generated
- the following results:
-
- DIGITS i1= 7
- DIGITS i2= 15
- DIGITS i4= 31
- DIGITS i8= 63
- DIGITS id= 63
-
- UNICOS systems, except for CRAY T90 systems that support IEEE
- floating-point arithmetic, generated the following results:
-
- DIGITS i1= 7
- DIGITS i2= 15
- DIGITS i4= 31
- DIGITS i8= 63
- DIGITS id= 63
-
- UNICOS/mk systems generated the following results:
-
- DIGITS i1= 7
- DIGITS i2= 15
- DIGITS i4= 31
- DIGITS i8= 63
- DIGITS id= 63
-
- SSEEEE AALLSSOO
- MMOODDEELLSS(3I)
-
- _I_n_t_r_i_n_s_i_c _P_r_o_c_e_d_u_r_e_s _R_e_f_e_r_e_n_c_e _M_a_n_u_a_l, publication SR-2138, for the
- printed version of this man page.
-
-