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From:	"Richard Stanton" <stanton AT Haas DOT Berkeley DOT EDU>
To:	<cygwin AT sourceware DOT cygnus DOT com>
Subject:	Latest gcc/cygwin - bug in %e format specifier?
Date:	Thu, 15 Jun 2000 09:52:01 -0700
Message-ID:	<000001bfd6ea$06f36910$524b2080@berkeley.edu>
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The latest net release of gcc seems to have a slight bug in the %e print
format specifier. It prints garbage when you try to print a variable whose
value is zero.

For example, attached is a (very) short program that does nothing but print
two variables, with values 0 and 1 respectively. I'd show the output, but it
contains several null characters which don't seem to cut/paste very well.
The basic result is that the 1 variable works fine. The zero variable prints
stuff it shouldn't.

To test, just run

"gcc testit.c -o testit"

Then run testit. Optimizations don't seem to matter.

Richard Stanton

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#include <stdio.h>

int main(int argc, char *argv[])
{
    double tt = 0.0;
    double uu = 1.0;

    printf("tt = %e\n", tt);
    printf("uu = %e\n", uu);
    return 0;
}


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