xref: /llvm-project/flang/test/Semantics/declarations03.f90 (revision 961a138237947daa5ccabfc87dbfbad8b47146e4)
1! RUN: %python %S/test_errors.py %s %flang_fc1
2! test bind(c) name conflict
3
4module m
5
6  integer :: x, y, z, w, i, j, k
7
8  !ERROR: Two entities have the same global name 'aa'
9  common /blk1/ x, /blk2/ y
10  bind(c, name="aa") :: /blk1/, /blk2/
11
12  integer :: t
13  !ERROR: Two entities have the same global name 'bb'
14  common /blk3/ z
15  bind(c, name="bb") :: /blk3/, t
16
17  integer :: t2
18  !ERROR: Two entities have the same global name 'cc'
19  common /blk4/ w
20  bind(c, name="cc") :: t2, /blk4/
21
22  !ERROR: The entity 'blk5' has multiple BIND names ('dd' and 'ee')
23  common /blk5/ i
24  bind(c, name="dd") :: /blk5/
25  bind(c, name="ee") :: /blk5/
26
27  !ERROR: Two entities have the same global name 'ff'
28  common /blk6/ j, /blk7/ k
29  bind(c, name="ff") :: /blk6/
30  bind(c, name="ff") :: /blk7/
31
32  !ERROR: The entity 's1' has multiple BIND names ('gg' and 'hh')
33  integer :: s1
34  bind(c, name="gg") :: s1
35  !ERROR: BIND_C attribute was already specified on 's1'
36  bind(c, name="hh") :: s1
37
38  !ERROR: Two entities have the same global name 'ii'
39  integer :: s2, s3
40  bind(c, name="ii") :: s2
41  bind(c, name="ii") :: s3
42
43  !ERROR: The entity 's4' has multiple BIND names ('ss1' and 'jj')
44  integer, bind(c, name="ss1") :: s4
45  !ERROR: BIND_C attribute was already specified on 's4'
46  bind(c, name="jj") :: s4
47
48  !ERROR: The entity 's5' has multiple BIND names ('kk' and 'ss2')
49  bind(c, name="kk") :: s5
50  !ERROR: BIND_C attribute was already specified on 's5'
51  integer, bind(c, name="ss2") :: s5
52
53  integer, bind(c, name="s6explicit") :: s6
54  dimension s6(10) ! caused spurious error
55
56end
57
58subroutine common1()
59  real :: x
60  common /com/ x
61  bind(c, name='xcom') /com/ ! no error
62end subroutine
63
64subroutine common2()
65  real :: x
66  common /com/ x
67  bind(c, name='xcom') /com/ ! no error
68end subroutine
69
70module a
71  integer, bind(c, name="int") :: i
72end module
73
74module b
75  !ERROR: Two entities have the same global name 'int'
76  integer, bind(c, name="int") :: i
77end module
78
79module c
80  bind(c, name = "AAA") a
81  integer aaa ! ensure no bogus error about multiple binding names
82end module
83