[Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread Raymond Hettinger
My colleague got an odd result today that is reproducible on his build of Python (RedHat's distribution of Py2.4.2) but not any other builds I've checked (including an Ubuntu Py2.4.2 built with a later version of GCC). I hypothesized that this was a bug in the underlying GCC libraries, but the

Re: [Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread skip
Raymond My colleague got an odd result today that is reproducible on Raymond his build of Python (RedHat's distribution of Py2.4.2) but not Raymond any other builds I've checked (including an Ubuntu Py2.4.2 Raymond built with a later version of GCC). I hypothesized that this

Re: [Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread Martin v. Löwis
Raymond Hettinger schrieb: My colleague got an odd result today that is reproducible on his build of Python (RedHat's distribution of Py2.4.2) but not any other builds I've checked (including an Ubuntu Py2.4.2 built with a later version of GCC). I hypothesized that this was a bug in the

Re: [Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread Bryan O'Sullivan
Raymond Hettinger wrote: My colleague got an odd result today that is reproducible on his build of Python (RedHat's distribution of Py2.4.2) but not any other builds I've checked (including an Ubuntu Py2.4.2 built with a later version of GCC). I hypothesized that this was a bug in the

Re: [Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread Tim Peters
[Raymond Hettinger] My colleague got an odd result today that is reproducible on his build of Python (RedHat's distribution of Py2.4.2) but not any other builds I've checked (including an Ubuntu Py2.4.2 built with a later version of GCC). I hypothesized that this was a bug in the underlying

Re: [Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread Raymond Hettinger
* (1/100.0) -19400.0 Raymond -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] Sent: Thursday, October 19, 2006 1:44 PM To: Raymond Hettinger Cc: python-dev@python.org Subject: Re: [Python-Dev] Nondeterministic long-to-float coercion Raymond My colleague got

Re: [Python-Dev] Nondeterministic long-to-float coercion

2006-10-19 Thread Facundo Batista
2006/10/19, Raymond Hettinger [EMAIL PROTECTED]: My colleague got an odd result today that is reproducible on his build of Python (RedHat's distribution of Py2.4.2) but not any other builds ... set(-194 * (1/100.0) for i in range(1)) set([-19400.0, -193995904.0,