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[Patch, fortran] PR38915 - wrong results for structure assignment of character components when left and right sides overlap

From: Paul Richard Thomas <paul dot richard dot thomas at gmail dot com>
To: Fortran List <fortran at gcc dot gnu dot org>, gcc-patches <gcc-patches at gcc dot gnu dot org>
Date: Wed, 28 Jan 2009 07:20:08 +0100
Subject: [Patch, fortran] PR38915 - wrong results for structure assignment of character components when left and right sides overlap

The attached is a belt-and-braces approach to the string length of
temporaries getting lost in simple assignments of character derived
type components.

Bootstrapped and regtested on FC9/x86_64 - OK for 4.5?

Paul

2009-01-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/38915
	* trans-expr.c (gfc_trans_assignment_1): Ensure temporaries
	have a string_length.

2009-01-28  Paul Thomas  <pault@gcc.gnu.org>

	PR fortran/38915
	* gfortran.dg/char_length_15.f90: New test.

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