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! { dg-do run }
! tests that operator overloading works correctly for operators with
! different spellings
module m
type t
integer :: i
end type t
interface operator (==)
module procedure teq
end interface
interface operator (/=)
module procedure tne
end interface
interface operator (>)
module procedure tgt
end interface
interface operator (>=)
module procedure tge
end interface
interface operator (<)
module procedure tlt
end interface
interface operator (<=)
module procedure tle
end interface
type u
integer :: i
end type u
interface operator (.eq.)
module procedure ueq
end interface
interface operator (.ne.)
module procedure une
end interface
interface operator (.gt.)
module procedure ugt
end interface
interface operator (.ge.)
module procedure uge
end interface
interface operator (.lt.)
module procedure ult
end interface
interface operator (.le.)
module procedure ule
end interface
contains
function teq (a, b)
logical teq
type (t), intent (in) :: a, b
teq = a%i == b%i
end function teq
function tne (a, b)
logical tne
type (t), intent (in) :: a, b
tne = a%i /= b%i
end function tne
function tgt (a, b)
logical tgt
type (t), intent (in) :: a, b
tgt = a%i > b%i
end function tgt
function tge (a, b)
logical tge
type (t), intent (in) :: a, b
tge = a%i >= b%i
end function tge
function tlt (a, b)
logical tlt
type (t), intent (in) :: a, b
tlt = a%i < b%i
end function tlt
function tle (a, b)
logical tle
type (t), intent (in) :: a, b
tle = a%i <= b%i
end function tle
function ueq (a, b)
logical ueq
type (u), intent (in) :: a, b
ueq = a%i == b%i
end function ueq
function une (a, b)
logical une
type (u), intent (in) :: a, b
une = a%i /= b%i
end function une
function ugt (a, b)
logical ugt
type (u), intent (in) :: a, b
ugt = a%i > b%i
end function ugt
function uge (a, b)
logical uge
type (u), intent (in) :: a, b
uge = a%i >= b%i
end function uge
function ult (a, b)
logical ult
type (u), intent (in) :: a, b
ult = a%i < b%i
end function ult
function ule (a, b)
logical ule
type (u), intent (in) :: a, b
ule = a%i <= b%i
end function ule
end module m
program main
call checkt
call checku
contains
subroutine checkt
use m
type (t) :: a, b
logical :: r1(6), r2(6)
a%i = 0; b%i = 1
r1 = (/ a == b, a /= b, a < b, a <= b, a > b, a >= b /)
r2 = (/ a.eq.b, a.ne.b, a.lt.b, a.le.b, a.gt.b, a.ge.b /)
if (any (r1.neqv.r2)) STOP 1
if (any (r1.neqv. &
(/ .false.,.true.,.true., .true., .false.,.false. /) )) STOP 1
end subroutine checkt
subroutine checku
use m
type (u) :: a, b
logical :: r1(6), r2(6)
a%i = 0; b%i = 1
r1 = (/ a == b, a /= b, a < b, a <= b, a > b, a >= b /)
r2 = (/ a.eq.b, a.ne.b, a.lt.b, a.le.b, a.gt.b, a.ge.b /)
if (any (r1.neqv.r2)) STOP 2
if (any (r1.neqv. &
(/ .false.,.true.,.true., .true., .false.,.false. /) )) STOP 2
end subroutine checku
end program main
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