re PR fortran/37076 (Concatenation of KIND=4 strings with KIND=4 parameters fails)

2008-08-23  Tobias Burnus  <burnus@net-b.de>

        PR fortran/37076
        * arith.c (gfc_arith_concat): Fix concat of kind=4 strings.

2008-08-23  Tobias Burnus  <burnus@net-b.de>

        PR fortran/37076
        * gfortran.dg/widechar_9.f90: New.

From-SVN: r139521

gcc/fortran/ChangeLog

 2008-08-23  Tobias Burnus  <burnus@net-b.de>
 
+	PR fortran/37076
+	* arith.c (gfc_arith_concat): Fix concat of kind=4 strings.
+
+2008-08-23  Tobias Burnus  <burnus@net-b.de>
+
 	PR fortran/37025
 	* target-memory.c (gfc_interpret_character): Support
 	kind=4 characters.

gcc/fortran/arith.c

@@ -1069,7 +1069,8 @@ gfc_arith_concat (gfc_expr *op1, gfc_expr *op2, gfc_expr **resultp)
   gfc_expr *result;
   int len;
 
-  result = gfc_constant_result (BT_CHARACTER, gfc_default_character_kind,
+  gcc_assert (op1->ts.kind == op2->ts.kind);
+  result = gfc_constant_result (BT_CHARACTER, op1->ts.kind,
 				&op1->where);
 
   len = op1->value.character.length + op2->value.character.length;

gcc/testsuite/ChangeLog

 2008-08-23  Tobias Burnus  <burnus@net-b.de>
 
+	PR fortran/37076
+	* gfortran.dg/widechar_9.f90: New.
+
+2008-08-23  Tobias Burnus  <burnus@net-b.de>
+
 	PR fortran/37025
 	* gfortran.dg/widechar_8.f90: New.
 

gcc/testsuite/gfortran.dg/widechar_9.f90

+! { dg-do compile }
+!
+! PR fortran/37076
+!
+! Before the result of concatenations was always a kind=1 string
+!
+program test3
+  integer,parameter :: u = 4
+  character(1,u),parameter :: nen=char(int(z'5e74'),u) !year
+  character(25,u) :: string
+  string = u_"2008"//nen
+  print *, u_"2008"//nen ! Compiles OK
+  print *, u_"2008"//nen//u_"8" ! Rejects this.
+end program test3