https://gcc.gnu.org/bugzilla/show_bug.cgi?id=64854
Harald Anlauf <anlauf at gmx dot de> changed:
What |Removed |Added
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CC| |anlauf at gmx dot de
--- Comment #3 from Harald Anlauf <anlauf at gmx dot de> ---
(In reply to Dominique d'Humieres from comment #1)
> Well, you give wrong information to the compiler. How do expect it to handle
> your mistake: in testsub -fcheck=bounds checks that n1<=i<=n2 which is the
> case. What you ask for is a check that a(n1:n2) is inside a(1:10), AFAIK
> such check is not implemented and I don't have any idea about how difficult
> it is to implement it.
valgrind detects this issue.
I was expected that the address sanitizer is able to handle it,
but I am getting linking errors on my system.
> I am inclined to close tis PR as INVALID or WONTFIX.
The right way to fix the problem is to fix the program
by using an appropriate programming style. Writing
real :: a(n1:) ! not: real :: a(n1:n2)
one gets the expected check:
At line 22 of file pr64854.f90
Fortran runtime error: Index '1048586' of dimension 1 of array 'a' above upper
bound of 1048585
Backtrace for this error:
+ function testsub.3321 (0x80486A4)
from file pr64854.f90
+ in the main program
from file pr64854.f90
+ /lib/libc.so.6(__libc_start_main+0xf3) [0xb7424003]
I also suggest to close the PR.
