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Compiler fails to detect syntax error in STOP statement

 
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mecej4



Joined: 31 Oct 2006
Posts: 1580

PostPosted: Mon May 03, 2021 3:27 am    Post subject: Compiler fails to detect syntax error in STOP statement Reply with quote

The following test program contains a STOP statement with a composite I/O list instead of a string expression. The compiler does not catch this, and the result is access violations in the run time library at run time.

Code:
program stopbug
implicit none
integer iter
real x,f
!
iter = 0
x = 1.0
do
   iter = iter+1
   x = (x+2/x)/2
   if(abs(x*x-2.0) < 1e-7)exit
   if(iter > 5)stop 'Did not finish in ',iter,' iterations'  ! ** SYNTAX ERROR, not caught
end do
end program


Last edited by mecej4 on Mon May 03, 2021 8:46 am; edited 1 time in total
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7142
Location: Salford, UK

PostPosted: Mon May 03, 2021 6:44 am    Post subject: Reply with quote

mecej4

Thank you for the bug report which I have logged for action.
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PaulLaidler
Site Admin


Joined: 21 Feb 2005
Posts: 7142
Location: Salford, UK

PostPosted: Mon May 03, 2021 10:46 am    Post subject: Reply with quote

mecej4

This failure has now been fixed for the next release of FTN95 which I plan to make available later today.
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