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Testing SvTYPE() directly is more fraught with problems than one might think, because depending on context Perl might be storing a scalar value in one of several forms, eg both numeric and string values. This resulted in Perl-version-dependent buildfarm test failures. Instead use the SvTYPE test only to distinguish non-scalar cases (AV, HV, NULL). Disambiguate scalars by testing SvIOK, SvNOK, then SvPOK. This creates a preference order for how we will resolve cases where the value is available in more than one form, which seems fine to me. Furthermore, because we're now dealing directly with a "double" value in the SvNOK case, we can get rid of an inadequate and unportable string-comparison test for infinities, and use isinf() instead. (We do need some additional #include and "-lm" infrastructure to use that in a contrib module, per prior experiences.) In passing, prevent the regression test results from depending on DROP CASCADE order; I've not seen that malfunction, but it's trouble waiting to happen. Discussion: https://postgr.es/m/E1f3MMJ-0006bf-B0@gemulon.postgresql.org |
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PostgreSQL Database Management System ===================================== This directory contains the source code distribution of the PostgreSQL database management system. PostgreSQL is an advanced object-relational database management system that supports an extended subset of the SQL standard, including transactions, foreign keys, subqueries, triggers, user-defined types and functions. This distribution also contains C language bindings. PostgreSQL has many language interfaces, many of which are listed here: https://www.postgresql.org/download See the file INSTALL for instructions on how to build and install PostgreSQL. That file also lists supported operating systems and hardware platforms and contains information regarding any other software packages that are required to build or run the PostgreSQL system. Copyright and license information can be found in the file COPYRIGHT. A comprehensive documentation set is included in this distribution; it can be read as described in the installation instructions. The latest version of this software may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.