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/GNU Fortran 7

9.162 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

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https://gcc.gnu.org/onlinedocs/gcc-7.1.0/gfortran/KIND.html