[PATCH] PR fortran/70070 - ICE on initializing character data beyond min/max bound

Harald Anlauf anlauf@gmx.de
Sun Jan 24 21:12:00 GMT 2021


Dear all,

the attached patch is pretty much self-explaining: check for bounds violation
when initializing a substring in a data statement and treat the resulting error.

If more detailed information should be emitted with the error message, I'm
open for suggestions.

Regtested on x86_64-pc-linux-gnu.

OK for master?

Thanks,
Harald


PR fortran/70070 - ICE on initializing character data beyond min/max bound

Check for initialization of substrings beyond bounds in DATA statements.

gcc/fortran/ChangeLog:

	PR fortran/70070
	* data.c (create_character_initializer): Check substring indices
	against bounds.
	(gfc_assign_data_value): Catch error returned from
	create_character_initializer.

gcc/testsuite/ChangeLog:

	PR fortran/70070
	* gfortran.dg/pr70070.f90: New test.

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