[Bug fortran/35962] Should warn about precision loss on integer conversions in fortran

2008-04-17 Thread burnus at gcc dot gnu dot org 


--- Comment #1 from burnus at gcc dot gnu dot org  2008-04-17 08:50 ---
Can you try:
   -Wconversion
   Warn about implicit conversions between different types.

It might be a bit verbose as it, e.g., also warns for complex(8) = real(8),
which has no conversion problem, but otherwise it is ok.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35962

[Bug fortran/35962] Should warn about precision loss on integer conversions in fortran

2008-04-17 Thread J dot Hogg at rl dot ac dot uk 


--- Comment #2 from J dot Hogg at rl dot ac dot uk  2008-04-17 09:33 ---
That seems to fix the original complaint with the following output:
[EMAIL PROTECTED] ~/bugs/gfortran-4.3/ls_prec  $ gfortran-4.3 -Wall -pedantic
-Wconversion -o test test.f90 
test.f90:10.20:

   lvar = 2_long**33
   1
Warning: Conversion from INTEGER(4) to INTEGER(8) at (1)
test.f90:16.20:

   lvar = 2_long**30
   1
Warning: Conversion from INTEGER(4) to INTEGER(8) at (1)
test.f90:11.10:

   svar = lvar
 1
Warning: Conversion from INTEGER(8) to INTEGER(4) at (1)
test.f90:17.10:

   svar = lvar
 1
Warning: Conversion from INTEGER(8) to INTEGER(4) at (1)

Apologies for wasting your time in that respect, though as you say it is a
little verbose and a happy medium between the two would be appreciated.


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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35962

[Bug fortran/35962] Should warn about precision loss on integer conversions in fortran

2008-04-17 Thread tkoenig at gcc dot gnu dot org 


--- Comment #3 from tkoenig at gcc dot gnu dot org  2008-04-17 22:00 ---
This is pretty much addressed in PR 27866.

Closing as a duplicate.

*** This bug has been marked as a duplicate of 27866 ***


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tkoenig at gcc dot gnu dot org changed:

   What|Removed |Added

 Status|UNCONFIRMED |RESOLVED
 Resolution||DUPLICATE


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=35962