SELECTED_CHAR_KIND - The GNU Fortran Compiler
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### 8.215 `SELECTED_CHAR_KIND` — Choose character kind

Description:
  `SELECTED_CHAR_KIND(NAME)` returns the kind value for the character set named NAME, if a character set with such a name is supported, or -1 otherwise. Currently, supported character sets include “ASCII” and “DEFAULT”, which are equivalent, and “ISO_10646” (Universal Character Set, UCS-4) which is commonly known as Unicode.
Standard:
  Fortran 2003 and later
Class:
  Transformational function
Syntax:
  `RESULT = SELECTED_CHAR_KIND(NAME)`
Arguments:

  NAME | Shall be a scalar and of the default character type.

Example:

                program character_kind
                  use iso_fortran_env
                  implicit none
                  integer, parameter :: ascii = selected_char_kind ("ascii")
                  integer, parameter :: ucs4  = selected_char_kind ('ISO_10646')

                  character(kind=ascii, len=26) :: alphabet
                  character(kind=ucs4,  len=30) :: hello_world

                  alphabet = ascii_"abcdefghijklmnopqrstuvwxyz"
                  hello_world = ucs4_'Hello World and Ni Hao -- ' &
                                // char (int (z'4F60'), ucs4)     &
                                // char (int (z'597D'), ucs4)

                  write (*,*) alphabet

                  open (output_unit, encoding='UTF-8')
                  write (*,*) trim (hello_world)
                end program character_kind