KIND - The GNU Fortran Compiler
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### 8.140 `KIND` — Kind of an entity

Description:
  `KIND(X)` returns the kind value of the entity X.
Standard:
  Fortran 95 and later
Class:
  Inquiry function
Syntax:
  `K = KIND(X)`
Arguments:

  X | Shall be of type `LOGICAL`, `INTEGER`, `REAL`, `COMPLEX` or `CHARACTER`.

Return value:
  The return value is a scalar of type `INTEGER` and of the default integer kind.
Example:

                program test_kind
                  integer,parameter :: kc = kind(' ')
                  integer,parameter :: kl = kind(.true.)

                  print *, "The default character kind is ", kc
                  print *, "The default logical kind is ", kl
                end program test_kind