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Bounds checking in Fortran [message #1732532]

Wed, 18 May 2016 01:53

Bruno bc.sotelobucla.edu

Messages: 1
Registered: May 2016

Junior Member

Hello,

I'm a newbie in Eclipse and in programming in general.

I'm running mathematical codes, and I'm getting the error:

Program received signal SIGSEGV: Segmentation fault - invalid memory reference.

Backtrace for this error:
#0 0x10490c092
#1 0x10490b3b0
#2 0x7fff8da12ea9
#3 0x1047f061d
#4 0x1047f7688
#5 0x1047f77b8

My professor said the next best thing to do is to look into bounds checking. I think he's saying to check if I have something like this:

program main
Real*8,dimension(3) :: a
Real*parameter :: b=3

a(1)=3*b ;a(2)=4*b ; a(3)=4*b ; a(4)=9*b
end

Can anyone help me how I can set up eclipse so that when it runs, it performs bounds checking and tells, for the above example, that I'm out of bounds with

a(4)

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Re: Bounds checking in Fortran [message #1732543 is a reply to message #1732532]

Wed, 18 May 2016 07:28

Tauno Voipio

Messages: 390
Registered: August 2014

Senior Member

This is a property of the Fortran compiler and runtime you're using.

If you are using the GNU Fortran, Google for it.

There are also some tools, depending on the operating system you're running under. Google for Valgrind.

--

Tauno Voipio

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