Description of Problem:

Using g77 (RedHatLinux7.0) the function ICHAR produces wrong results.
How Reproducible:
All the time.

Steps to Reproduce:

FORTRAN code:

       program test
       integer ic
       character*1 ch
       do 100 i=0,255
         ch=char(i)
         ic=ichar(ch)
         print *,ic
 100   continue
       end

Actual Results:
0,1,...,126,127,-128,-129,...-2,-1

Expected Results:
0,1,...,126,127,128,129,.....254,255

Additional Information:
Problem occurs with RH Linux7.0 and g77 version 2.96 (gcc 2.96).
Problem does not occur in previous version of RH Linux(5.1) with
the gcc version (egcs-2.90.27 980315 (egcs-1.0.2 release)