llvm-project/flang/test/Semantics/transfer01.f90
Peter Klausler 2577cb7a20 [flang] Check restrictions on TRANSFER()
Enforce detectable compilation-time violations of restrictions on the
arguments to the TRANSFER() intrinsic function (16.9.163) with
error messages, and mark other potential problems with warnings.

Differential Revision: https://reviews.llvm.org/D139157
2022-12-04 15:29:12 -08:00

32 lines
1.3 KiB
Fortran

! RUN: %python %S/test_errors.py %s %flang_fc1
! Check errors in TRANSFER()
subroutine subr(o)
integer, intent(in), optional :: o
type empty
end type
type(empty) :: empty1(1)
real :: empty2(0)
character(0) :: empty3(1)
integer, pointer :: source(:)
integer, allocatable :: ia
integer, pointer :: ip
!ERROR: Element size of MOLD= array may not be zero when SOURCE= is not empty
print *, transfer(1., empty1)
print *, transfer(1., empty2) ! ok
!ERROR: Element size of MOLD= array may not be zero when SOURCE= is not empty
print *, transfer(1., empty3)
!WARNING: Element size of MOLD= array may not be zero unless SOURCE= is empty
print *, transfer(source, empty1)
print *, transfer(source, empty2) ! ok
!WARNING: Element size of MOLD= array may not be zero unless SOURCE= is empty
print *, transfer(source, empty3)
!ERROR: SIZE= argument may not be the optional dummy argument 'o'
print *, transfer(1., empty2, size=o)
!WARNING: SIZE= argument that is allocatable or pointer must be present at execution; parenthesize to silence this warning
print *, transfer(1., empty2, size=ia)
!WARNING: SIZE= argument that is allocatable or pointer must be present at execution; parenthesize to silence this warning
print *, transfer(1., empty2, size=ip)
end