------- Comment #6 from kargl at gcc dot gnu dot org 2007-09-03 03:58 ------- (In reply to comment #3) > (In reply to comment #1) >> This is assuming that an asymmetric range is permitted in Fortran which >> I think >> it is not. You can use -fno-range-check to disable this check. >> > > In the IBM XL Fortran 90 manual: > pg 19 > I quote: for Integer Kind parameter 4 range of value "-2147483648 through to > 2147483647" > namely -(2^31) to (2^31 -1)
The IBM XL manual isn't the Fortran standard. > Compiling this using gcc-gfortran-4.1.X and gcc-g77-3.X > works It was a bug in older versions of gfortran. > > It is a Fortran standard! > The Fortran 95 standard doesn't specify the values that an integer can take. It does specify the model numbers for integer. There is a difference! In "i = - 2147483648", the RHS is an expression. It is a unary minus operator with the operand 2147483648, which is greater than 2^31-1. -- http://gcc.gnu.org/bugzilla/show_bug.cgi?id=33285
