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Manual Reference Pages  - selected_int_kind (3)

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NAME

selected_int_kind(3f) - [FORTRAN:INTRINSIC] Choose integer kind

CONTENTS

Syntax
Description
Arguments
Example
Standard
Class

SYNTAX

result = selected_int_kind(r)

DESCRIPTION

selected_int_kind(r) return the kind value of the smallest integer type that can represent all values ranging from -10**R (exclusive) to 10**R (exclusive). If there is no integer kind that accommodates this range, selected_int_kind returns -1.

ARGUMENTS

R	- Shall be a scalar and of type INTEGER.

EXAMPLE

Sample program:

   program demo_selected_int_kind
     integer,parameter :: k5 = selected_int_kind(5)
     integer,parameter :: k15 = selected_int_kind(15)
     integer(kind=k5) :: i5
     integer(kind=k15) :: i15

     print *, huge(i5), huge(i15)

     ! the following inequalities are always true
     print *, huge(i5) >= 10_k5**5-1
     print *, huge(i15) >= 10_k15**15-1
   end program demo_selected_int_kind

STANDARD

[[Fortran 95]] and later

CLASS

Transformational function

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selected_int_kind (3)

March 19, 2019

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