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| author | Janus Weil <janus@gcc.gnu.org> | 2008-07-02 21:53:37 +0200 |
|---|---|---|
| committer | Janus Weil <janus@gcc.gnu.org> | 2008-07-02 21:53:37 +0200 |
| commit | 8fb74da43bd12ea5008ba9fba2173b455d494b2c (patch) | |
| tree | 22cdfa5a0f9753aaa861e0696994a9d143ec1e49 /gcc/fortran/primary.c | |
| parent | 658896fbb85ebf48d21c9a08e405d0916ca1d45a (diff) | |
| download | gcc-8fb74da43bd12ea5008ba9fba2173b455d494b2c.zip gcc-8fb74da43bd12ea5008ba9fba2173b455d494b2c.tar.gz gcc-8fb74da43bd12ea5008ba9fba2173b455d494b2c.tar.bz2 | |
re PR fortran/32580 (iso_c_binding c_f_procpointer / procedure pointers)
2008-07-02 Janus Weil <janus@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
Paul Thomas <pault@gcc.gnu.org>
PR fortran/32580
* gfortran.h (struct gfc_symbol): New member "proc_pointer".
* check.c (gfc_check_associated,gfc_check_null): Implement
procedure pointers.
* decl.c (match_procedure_decl): Ditto.
* expr.c (gfc_check_pointer_assign,gfc_check_assign_symbol): Ditto.
* interface.c (compare_actual_formal): Ditto.
* match.h: Ditto.
* match.c (gfc_match_pointer_assignment): Ditto.
* parse.c (parse_interface): Ditto.
* primary.c (gfc_match_rvalue,match_variable): Ditto.
* resolve.c (resolve_fl_procedure): Ditto.
* symbol.c (check_conflict,gfc_add_external,gfc_add_pointer,
gfc_copy_attr,gen_fptr_param,build_formal_args): Ditto.
* trans-decl.c (get_proc_pointer_decl,gfc_get_extern_function_decl,
create_function_arglist): Ditto.
* trans-expr.c (gfc_conv_variable,gfc_conv_function_val,
gfc_conv_function_call,gfc_trans_pointer_assignment): Ditto.
2008-07-02 Janus Weil <janus@gcc.gnu.org>
Tobias Burnus <burnus@net-b.de>
PR fortran/32580
* gfortran.dg/c_f_pointer_tests_3.f90: Updated.
* gfortran.dg/proc_decl_1.f90: Updated.
* gfortran.dg/proc_ptr_1.f90: New.
* gfortran.dg/proc_ptr_2.f90: New.
* gfortran.dg/proc_ptr_3.f90: New.
* gfortran.dg/proc_ptr_4.f90: New.
* gfortran.dg/proc_ptr_5.f90: New.
* gfortran.dg/proc_ptr_6.f90: New.
* gfortran.dg/proc_ptr_7.f90: New.
* gfortran.dg/proc_ptr_8.f90: New.
Co-Authored-By: Paul Thomas <pault@gcc.gnu.org>
Co-Authored-By: Tobias Burnus <burnus@net-b.de>
From-SVN: r137386
Diffstat (limited to 'gcc/fortran/primary.c')
| -rw-r--r-- | gcc/fortran/primary.c | 27 |
1 files changed, 27 insertions, 0 deletions
diff --git a/gcc/fortran/primary.c b/gcc/fortran/primary.c index d7236e1..c67f2bd 100644 --- a/gcc/fortran/primary.c +++ b/gcc/fortran/primary.c @@ -2323,6 +2323,9 @@ gfc_match_rvalue (gfc_expr **result) } } + if (gfc_matching_procptr_assignment) + goto procptr0; + if (sym->attr.function || sym->attr.external || sym->attr.intrinsic) goto function0; @@ -2399,6 +2402,27 @@ gfc_match_rvalue (gfc_expr **result) /* If we're here, then the name is known to be the name of a procedure, yet it is not sure to be the name of a function. */ case FL_PROCEDURE: + + /* Procedure Pointer Assignments. */ + procptr0: + if (gfc_matching_procptr_assignment) + { + gfc_gobble_whitespace (); + if (sym->attr.function && gfc_peek_ascii_char () == '(') + /* Parse functions returning a procptr. */ + goto function0; + + if (sym->attr.flavor == FL_UNKNOWN) sym->attr.flavor = FL_PROCEDURE; + if (gfc_intrinsic_name (sym->name, 0) + || gfc_intrinsic_name (sym->name, 1)) + sym->attr.intrinsic = 1; + e = gfc_get_expr (); + e->expr_type = EXPR_VARIABLE; + e->symtree = symtree; + m = match_varspec (e, 0); + break; + } + if (sym->attr.subroutine) { gfc_error ("Unexpected use of subroutine name '%s' at %C", @@ -2780,6 +2804,9 @@ match_variable (gfc_expr **result, int equiv_flag, int host_flag) break; } + if (sym->attr.proc_pointer) + break; + /* Fall through to error */ default: |