[postmodern-devel] darcs patch: Correct rational (double-float) formatting

Fri Jul 25 15:52:12 CEST 2008 Arjan Wekking arjan@streamtech.nl * Correct rational (double-float) formatting

On Clozure CL (PPC32), (format "~f" (coerce 1/123 'double-float)) returns "0.008130081300813009D0" which is not a number syntax PostgreSQL understands.

In order to be sure that a format is used that is always supported, the formatting string was changed to generate the number in exponential notation which is accepted by PostgreSQL and which can be reliably generated by at least SBCL and Clozure CL (only CLs I've tested).

The modified control string in this patch ("~,,,,,,'EE") will generate for the rational 1/123 "8.130081300813009E-3" which is accepted and interpreted properly by PostgreSQL.