* Invalid change of value conversion warning message
@ 2016-05-03 4:25 William Clodius
0 siblings, 0 replies; 3+ messages in thread
From: William Clodius @ 2016-05-03 4:25 UTC (permalink / raw)
To: fortran
The file
module test_int
use, intrinsic:: iso_fortran_env
integer(int64), parameter :: &
e18 = 1000000000000000000_int64, &
e19 = ( -huge(1_int64) + &
(e18-223372036854775807_int64) &
) - 2
end module test_int
when compiled using
fortran -std=f2008 -fmax-errors=10 -Wall -Wimplicit-interface -O3 -fbacktrace -fwhole-file -I mod_dir -c -o test_int.o test_int.f90
on Mac OS X version 10.11.4
with version
gfortran --version
GNU Fortran (GCC) 6.1.0
Copyright (C) 2016 Free Software Foundation, Inc.
This is free software; see the source for copying conditions. There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
produces the message
test_int.f90:5:11:
e18 = 1000000000000000000_int64, &
1
Warning: Change of value in conversion from ‘INTEGER(8)’ to ‘REAL(4)’ at (1) [-Wconversion]
Putting in an
implicit none
statement doesn’t change the message.
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Invalid change of value conversion warning message
2016-05-04 16:58 Dominique d'Humières
@ 2016-05-05 2:34 ` William Clodius
0 siblings, 0 replies; 3+ messages in thread
From: William Clodius @ 2016-05-05 2:34 UTC (permalink / raw)
To: fortran
Done. Entered as Invalid type determination due to expression in a type declaration statement
ID 70959
> On May 4, 2016, at 10:58 AM, Dominique d'Humières <dominiq@lps.ens.fr> wrote:
>
> Simplified version
>
> ! integer(8), parameter :: e18 = 10000000000_8
> integer(8), parameter :: e18 = 100000000000_8
> integer(8), parameter :: e19 = (e18)
> ! integer(8), parameter :: e19 = e18
>
> print *, e18, e19
> end
>
> warn_conv_db_3.f90:2:32:
>
> integer(8), parameter :: e18 = 100000000000_8
> 1
> Warning: Change of value in conversion from 'INTEGER(8)' to 'REAL(4)' at (1) [-Wconversion]
>
> The warning is gone if I remove the parentheses in e19 = (e18) or if I replace 100000000000_8 with 10000000000_8.
>
> Could you please file a buzilla report?
>
> Dominique
>
^ permalink raw reply [flat|nested] 3+ messages in thread
* Re: Invalid change of value conversion warning message
@ 2016-05-04 16:58 Dominique d'Humières
2016-05-05 2:34 ` William Clodius
0 siblings, 1 reply; 3+ messages in thread
From: Dominique d'Humières @ 2016-05-04 16:58 UTC (permalink / raw)
To: williamclodius; +Cc: fortran
Simplified version
! integer(8), parameter :: e18 = 10000000000_8
integer(8), parameter :: e18 = 100000000000_8
integer(8), parameter :: e19 = (e18)
! integer(8), parameter :: e19 = e18
print *, e18, e19
end
warn_conv_db_3.f90:2:32:
integer(8), parameter :: e18 = 100000000000_8
1
Warning: Change of value in conversion from 'INTEGER(8)' to 'REAL(4)' at (1) [-Wconversion]
The warning is gone if I remove the parentheses in e19 = (e18) or if I replace 100000000000_8 with 10000000000_8.
Could you please file a buzilla report?
Dominique
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2016-05-05 2:34 UTC | newest]
Thread overview: 3+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-05-03 4:25 Invalid change of value conversion warning message William Clodius
2016-05-04 16:58 Dominique d'Humières
2016-05-05 2:34 ` William Clodius
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for read-only IMAP folder(s) and NNTP newsgroup(s).