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module custom_operator_07_a
implicit none
public :: string_t
type string_t
character(len=:), allocatable :: string_
contains
generic :: operator(//) => string_t_cat_string_t
procedure, private :: string_t_cat_string_t
end type
contains
elemental module function from_characters(string) result(new_string)
implicit none
character(len=*), intent(in) :: string
type(string_t) new_string
new_string%string_ = string
end function
pure module function string_t_cat_string_t(lhs, rhs) result(lhs_cat_rhs)
implicit none
class(string_t), intent(in) :: lhs, rhs
type(string_t) lhs_cat_rhs
lhs_cat_rhs = string_t(lhs%string_ // rhs%string_)
end function
end module custom_operator_07_a
module custom_operator_07_b
use custom_operator_07_a
implicit none
contains
subroutine test_concat
type(string_t) :: str, left, right
left = string_t("a")
right = string_t("b")
str = left // right
end subroutine test_concat
end module custom_operator_07_b
program custom_operator_07
use custom_operator_07_b
implicit none
call test_concat()
end program custom_operator_07
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