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| author | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
|---|---|---|
| committer | upstream source tree <ports@midipix.org> | 2015-03-15 20:14:05 -0400 |
| commit | 554fd8c5195424bdbcabf5de30fdc183aba391bd (patch) | |
| tree | 976dc5ab7fddf506dadce60ae936f43f58787092 /gcc/testsuite/gfortran.dg/assumed_charlen_function_1.f90 | |
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Diffstat (limited to 'gcc/testsuite/gfortran.dg/assumed_charlen_function_1.f90')
| -rw-r--r-- | gcc/testsuite/gfortran.dg/assumed_charlen_function_1.f90 | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/gcc/testsuite/gfortran.dg/assumed_charlen_function_1.f90 b/gcc/testsuite/gfortran.dg/assumed_charlen_function_1.f90 new file mode 100644 index 000000000..a28934e25 --- /dev/null +++ b/gcc/testsuite/gfortran.dg/assumed_charlen_function_1.f90 @@ -0,0 +1,80 @@ +! { dg-do compile }
+! { dg-options "-std=legacy" }
+! Tests the patch for PRs 25084, 20852, 25085 and 25086, all of
+! which involve assumed character length functions.
+! Compiled from original PR testcases, which were all contributed
+! by Joost VandeVondele <jv244@cam.ac.uk>
+!
+! PR25084 - the error is not here but in any use of .IN.
+! It is OK to define an assumed character length function
+! in an interface but it cannot be invoked (5.1.1.5).
+
+MODULE M1
+ TYPE SET
+ INTEGER CARD
+ END TYPE SET
+END MODULE M1
+
+MODULE INTEGER_SETS
+ INTERFACE OPERATOR (.IN.)
+ FUNCTION ELEMENT(X,A) ! { dg-error "cannot be assumed character length" }
+ USE M1
+ CHARACTER(LEN=*) :: ELEMENT
+ INTEGER, INTENT(IN) :: X
+ TYPE(SET), INTENT(IN) :: A
+ END FUNCTION ELEMENT
+ END INTERFACE
+END MODULE
+
+! 5.1.1.5 of the Standard: A function name declared with an asterisk
+! char-len-param shall not be array-valued, pointer-valued, recursive
+! or pure
+!
+! PR20852
+RECURSIVE FUNCTION TEST() ! { dg-error "cannot be recursive" }
+ CHARACTER(LEN=*) :: TEST
+ TEST = ""
+END FUNCTION
+
+!PR25085
+FUNCTION F1() ! { dg-error "cannot be array-valued" }
+ CHARACTER(LEN=*), DIMENSION(10) :: F1
+ F1 = ""
+END FUNCTION F1
+
+!PR25086
+FUNCTION F2() result(f4) ! { dg-error "cannot be pointer-valued" }
+ CHARACTER(LEN=*), POINTER :: f4
+ f4 = ""
+END FUNCTION F2
+
+!PR?????
+pure FUNCTION F3() ! { dg-error "cannot be pure" }
+ CHARACTER(LEN=*) :: F3
+ F3 = ""
+END FUNCTION F3
+
+function not_OK (ch)
+ character(*) not_OK, ch ! OK in an external function
+ not_OK = ch
+end function not_OK
+
+ use m1
+
+ character(4) :: answer
+ character(*), external :: not_OK
+ integer :: i
+ type (set) :: z
+
+ interface
+ function ext (i)
+ character(*) :: ext
+ integer :: i
+ end function ext
+ end interface
+
+ answer = not_OK ("unOK") ! { dg-error "since it is not a dummy" }
+
+END
+
+! { dg-final { cleanup-modules "M1" } }
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