2009-04-11  Daniel Kraft  <d@domob.eu>

	PR fortran/37746
	* gfortran.h (struct gfc_charlen): New field `passed_length' to store
	the actual passed string length for dummy arguments.
	* trans-decl.c (gfc_create_string_length): Formatting fixes and added
	assertion, moved a local variable into the innermost block it is needed.
	(create_function_arglist): Removed TODO about the check being
	implemented and initialize cl->passed_length here.
	(add_argument_checking): New method.
	(gfc_generate_function_code): Call the argument checking method.

2009-04-11  Daniel Kraft  <d@domob.eu>

	PR fortran/37746
	* gfortran.dg/bounds_check_strlen_1.f90: New test.
	* gfortran.dg/bounds_check_strlen_2.f90: New test.
	* gfortran.dg/bounds_check_strlen_3.f90: New test.
	* gfortran.dg/bounds_check_strlen_4.f90: New test.
	* gfortran.dg/bounds_check_strlen_5.f90: New test.
	* gfortran.dg/bounds_check_strlen_6.f90: New test.
	* gfortran.dg/bounds_check_strlen_7.f90: New test.
	* gfortran.fortran-torture/execute/intrinsic_index.f90: Fix wrong
	expected string length that failed with -fbounds-check now.
	* gfortran.fortran-torture/execute/intrinsic_trim.f90: Ditto.

From-SVN: r145958