Path: utzoo!telly!attcan!uunet!tut.cis.ohio-state.edu!CS.UTEXAS.EDU!meyering
From: meyering@CS.UTEXAS.EDU
Newsgroups: gnu.gcc.bug
Subject: sun4-os4 1.34 double truncated to float
Message-ID: <8903190507.AA08790@ai.cs.utexas.edu>
Date: 19 Mar 89 05:07:40 GMT
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Distribution: gnu
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gcc-1.34 (with -W patches posted by Paul Hudson)
config.gcc sun4-os4
Sun4/280 OS 4.0

The program below generates the output "1.0000002381857"
The correct result is simply "1" -- Any one of several minor
modifications to the code will cause it to give the correct result:

     1) remove the statement that assigns to y[i]
     2) make "x[i]" a scalar
     3) remove for-loop, and set i=0

main()
{
     double x[2],y[2];
     int i;
     for (i=0; i<1; i++) {
          x[i] = 1.0e0;
          printf("%.14g\n", x[i]);
          y[i] = 2.0e0;
     }
}
Jim Meyering    meyering@cs.utexas.edu