PR fortran/25078

        * match.c (gfc_match_equivalence):  Count number of objects.

        gfortran.dg/equiv_5.f90:  New test.

git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@108426 138bc75d-0d04-0410-961f-82ee72b054a4

diff --git a/gcc/fortran/ChangeLog b/gcc/fortran/ChangeLog
index fa055ea..d480b6f 100644 (file)
--- a/gcc/fortran/ChangeLog
+++ b/gcc/fortran/ChangeLog
@@ -1,3 +1,8 @@
+2005-12-12  Steven G. Kargl  <kargls@comcast.net>
+
+       PR fortran/25078
+       * match.c (gfc_match_equivalence):  Count number of objects.
+
 2005-12-11  Aldy Hernandez  <aldyh@redhat.com>
 
         * lang.opt: Add RejectNegative to ffixed-form and ffree-form.

diff --git a/gcc/fortran/match.c b/gcc/fortran/match.c
index 8ca7ed6..fd4fe33 100644 (file)
--- a/gcc/fortran/match.c
+++ b/gcc/fortran/match.c
@@ -2599,6 +2599,7 @@ gfc_match_equivalence (void)
   match m;
   gfc_common_head *common_head = NULL;
   bool common_flag;
+  int cnt;
 
   tail = NULL;
 
@@ -2616,6 +2617,7 @@ gfc_match_equivalence (void)
 
       set = eq;
       common_flag = FALSE;
+      cnt = 0;
 
       for (;;)
        {
@@ -2625,6 +2627,9 @@ gfc_match_equivalence (void)
          if (m == MATCH_NO)
            goto syntax;
 
+         /*  count the number of objects.  */
+         cnt++;
+
          if (gfc_match_char ('%') == MATCH_YES)
            {
              gfc_error ("Derived type component %C is not a "
@@ -2655,6 +2660,7 @@ gfc_match_equivalence (void)
 
          if (gfc_match_char (')') == MATCH_YES)
            break;
+
          if (gfc_match_char (',') != MATCH_YES)
            goto syntax;
 
@@ -2662,6 +2668,12 @@ gfc_match_equivalence (void)
          set = set->eq;
        }
 
+      if (cnt < 2)
+       {
+         gfc_error ("EQUIVALENCE at %C requires two or more objects");
+         goto cleanup;
+       }
+
       /* If one of the members of an equivalence is in common, then
         mark them all as being in common.  Before doing this, check
         that members of the equivalence group are not in different

diff --git a/gcc/testsuite/ChangeLog b/gcc/testsuite/ChangeLog
index d2740e7..370065d 100644 (file)
--- a/gcc/testsuite/ChangeLog
+++ b/gcc/testsuite/ChangeLog
@@ -1,3 +1,8 @@
+2005-12-12  Steven G. Kargl  <kargls@comcast.net>
+
+       PR fortran/25078
+       gfortran.dg/equiv_5.f90:  New test.
+
 2005-12-12  Daniel Berlin  <dberlin@dberlin.org>
 
        * gcc.dg/tree-ssa/ssa-pre-2.c: Update due to reassociation changes.

diff --git a/gcc/testsuite/gfortran.dg/equiv_5.f90 b/gcc/testsuite/gfortran.dg/equiv_5.f90
new file mode 100644 (file)
index 0000000..70b458b
--- /dev/null
+++ b/gcc/testsuite/gfortran.dg/equiv_5.f90
@@ -0,0 +1,7 @@
+! { dg-do compile }
+! PR fortran/25078
+! An equivalence statement requires two or more objcets.
+program a
+  real x
+  equivalence(x) ! { dg-error "two or more objects" }
+end program a