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digitalmars.D.bugs - Compile-time floating point division

reply David Friedman <d3rdclsmail_a_ _t_earthlink_d_._t_net> writes:
The following code fails for on Linux, but not Windows.  Probable cause: 
DMD's complex_t::operator/ does not handle special cases as in 
Phobos/DMC/GNU runtime libraries.

-----------
import std.math;
double f = -1.0/0.0;
double f1 = -1.0;
double f2 = 0;
int main() {
     assert(isinf(f1/f2)); // passes
     assert(isinf(f));     // fails
     return 0;
}
----------

David
May 03 2005
parent Thomas Kuehne <thomas-dloop kuehne.thisisspam.cn> writes:
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David Friedman schrieb am Tue, 03 May 2005 20:39:02 -0400:

 The following code fails for on Linux, but not Windows.  Probable cause: 
 DMD's complex_t::operator/ does not handle special cases as in 
 Phobos/DMC/GNU runtime libraries.

 -----------
 import std.math;
 double f = -1.0/0.0;
 double f1 = -1.0;
 double f2 = 0;
 int main() {
      assert(isinf(f1/f2)); // passes
      assert(isinf(f));     // fails
      return 0;
 }
 ----------

 David


Added to DStress as
http://dstress.kuehne.cn/run/o/opDiv_07_A.d
http://dstress.kuehne.cn/run/o/opDiv_07_B.d
http://dstress.kuehne.cn/run/o/opDiv_08_A.d
http://dstress.kuehne.cn/run/o/opDiv_08_B.d
http://dstress.kuehne.cn/run/o/opDiv_09_A.d
http://dstress.kuehne.cn/run/o/opDiv_09_B.d

Thomas


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May 11 2005