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Diffstat (limited to 'gcc/testsuite/gfortran.dg/class_12.f03')
-rw-r--r-- | gcc/testsuite/gfortran.dg/class_12.f03 | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/class_12.f03 b/gcc/testsuite/gfortran.dg/class_12.f03 new file mode 100644 index 000000000..56c68a577 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/class_12.f03 @@ -0,0 +1,45 @@ +! { dg-do compile } +! +! PR 41556: [OOP] Errors in applying operator/assignment to an abstract type +! +! Contributed by Damian Rouson <damian@rouson.net> + +module abstract_algebra + implicit none + private + public :: rescale + public :: object + + type ,abstract :: object + contains + procedure(assign_interface) ,deferred :: assign + procedure(product_interface) ,deferred :: product + generic :: assignment(=) => assign + generic :: operator(*) => product + end type + + abstract interface + function product_interface(lhs,rhs) result(product) + import :: object + class(object) ,intent(in) :: lhs + class(object) ,allocatable :: product + real ,intent(in) :: rhs + end function + subroutine assign_interface(lhs,rhs) + import :: object + class(object) ,intent(inout) :: lhs + class(object) ,intent(in) :: rhs + end subroutine + end interface + +contains + + subroutine rescale(operand,scale) + class(object) :: operand + real ,intent(in) :: scale + operand = operand*scale + operand = operand%product(scale) + end subroutine +end module + +! { dg-final { cleanup-modules "abstract_algebra" } } |