# New Ticket Created by Paul Cochrane
# Please include the string: [perl #45359]
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# <URL: http://rt.perl.org/rt3/Ticket/Display.html?id=45359 >
In the coding standards PDD (pdd07) there is the todo item:
{{ TODO: Enumerate all other non-C89 assumptions that Parrot depends on. }}
For context, the rest of the section where this appears reads:
C code must generally depend on only those language and library features
specified by the ISO C89 standard.
In addition, C code may assume that any pointer value can be coerced to an
integral type (no smaller than typedef C<INTVAL> in Parrot), then back to its
original type, without loss.
Also C code may assume that there is a single NULL pointer representation
and that it consists of a number, usually 4 or 8, of '\0' chars in memory.
C code that makes assumptions beyond these must depend on the configuration
system, either to not compile an entire non-portable source where it will not
work, or to provide an appropriate #ifdef macro.
Ok, so the question is: what other assumptions does/should the Parrot
C-language source rely on which are C89 nonstandard?
