re PR fortran/46020 (Improve error string for BIND(C) diagnostic for len>1 character return type)

2018-11-01  Thomas Koenig  <tkoenig@gcc.gnu.org>

    PR fortran/46020
    * gfortran.dg/bind_c_usage_7.f90: Adjust error message.
    * gfortran.dg/bind_c_usage_32.f90: New test.

From-SVN: r265716

gcc/testsuite/ChangeLog

+2018-11-01  Thomas Koenig  <tkoenig@gcc.gnu.org>
+
+	PR fortran/46020
+	* gfortran.dg/bind_c_usage_7.f90: Adjust error message.
+	* gfortran.dg/bind_c_usage_32.f90: New test.
+
 2018-11-01  Nathan Sidwell  <nathan@acm.org>
 
 	* g++.dg/abi/anon5.C: New.

gcc/testsuite/gfortran.dg/bind_c_usage_7.f03

@@ -7,7 +7,7 @@ contains
     integer(c_int) :: bar(5)
   end function bar
 
-  function my_string_func() bind(c) ! { dg-error "cannot be a character string" }
+  function my_string_func() bind(c) ! { dg-error "must have length 1" }
     character(kind=c_char, len=10) :: my_string_func
     my_string_func = 'my_string' // C_NULL_CHAR
   end function my_string_func