Article View: gnu.gcc.bug
Article #1518assignment from literal to double fails in 2.1
From: mitch Mitchell N. Perilstein
Date: Sat, 02 Jan 1993 10:17
Date: Sat, 02 Jan 1993 10:17
34 lines
1432 bytes
1432 bytes
Assignment with type conversion from a literal to a double is broken.
gcc 2.1 on Sparc SunOS 4.1.2 and on RISC Ultrix 4.2 produces an
unexpected result:
convert int to double: -2147483648 -> -2147483648.000000
convert lit to double: -2147483648 -> 2147483648.000000
I expected
convert int to double: -2147483648 -> -2147483648.000000
convert lit to double: -2147483648 -> -2147483648.000000
The vendor /bin/cc gave the second result on both platforms. Here is the
code.
#define INT_MIN (-2147483648) /* - (2^31) */
int main()
{
double from_int, from_literal;
int i;
i = INT_MIN;
from_int = i;
printf("convert int to double: %d -> %f\n", i, from_int);
from_literal = INT_MIN;
printf("convert lit to double: %d -> %f\n", INT_MIN, from_literal);
}
Respectfully,
---
Mitchell N. Perilstein CAD Language Systems, Inc. 410-992-5700 x225
Member, League for Programming Freedom. Mail lpf@uunet.uu.net for info.
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Newsgroups: gnu.gcc.bug Path: arc1-ca.pugleaf.net!sparky!uunet!wupost!zaphod.mps.ohio-state.edu!cis.ohio-state.edu!.UUCP!mitch From: mitch@.UUCP (Mitchell N. Perilstein) Subject: assignment from literal to double fails in 2.1 Message-ID: <MITCH.93Jan2051743@clsi.clsi> Sender: gnulists@ai.mit.edu Organization: CAD Language Systems, Inc. Distribution: gnu Date: Sat, 2 Jan 1993 10:17:43 GMT Approved: bug-gcc@prep.ai.mit.edu Lines: 35