unconstify_constexpr is like unconstify but for contexts where a constant expression is required, such as for initializing global variables. It provides the same level of checking as unconstify, but the checking only works on GCC, otherwise it lets anything through. Also, if the check fails, it gives a less clear error message. So it should only be used when necessary. (An unvolatize_constexpr doesn't seem necessary, but it could be added if required.) Reviewed-by: Rui Zhao <zhaorui126@gmail.com> Discussion: https://www.postgresql.org/message-id/c76b72dd-5736-453a-b698-6968d42e4768%40eisentraut.org
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.
Copyright and license information can be found in the file COPYRIGHT.
General documentation about this version of PostgreSQL can be found at https://www.postgresql.org/docs/devel/. In particular, information about building PostgreSQL from the source code can be found at https://www.postgresql.org/docs/devel/installation.html.
The latest version of this software, and related software, may be obtained at https://www.postgresql.org/download/. For more information look at our web site located at https://www.postgresql.org/.