[RFC] pascal support sizeof (expression)
Pierre Muller
pierre.muller@ics-cnrs.unistra.fr
Fri May 7 15:31:00 GMT 2010
The pascal parser only supports
sizeof (type), whereas c allows sizeof (expression).
sizeof (var) is also a valid construction inside
a pascal source, thus I want to add it to the parser.
Once more, I ask before committing because I am
unsure about the ChangeLog entry:
- How should I describe this lexical rule addition?
- Is it correct to put it inside 'pascal_parse'?
That is the name of the function in the
generated file p-exp.c.
Pierre Muller
Pascal language support maintainer for GDB
2010-05-07 Pierre Muller <muller@ics.u-strasbg.fr>
* p-exp.y (pascal_parse): Add support for `sizeof (expression)'.
Index: src/gdb/p-exp.y
===================================================================
RCS file: /cvs/src/src/gdb/p-exp.y,v
retrieving revision 1.49
diff -u -p -r1.49 p-exp.y
--- src/gdb/p-exp.y 6 May 2010 00:08:44 -0000 1.49
+++ src/gdb/p-exp.y 6 May 2010 23:06:14 -0000
@@ -525,6 +525,9 @@ exp : SIZEOF '(' type ')' %prec UNARY
write_exp_elt_opcode (OP_LONG); }
;
+exp : SIZEOF '(' exp ')' %prec UNARY
+ { write_exp_elt_opcode (UNOP_SIZEOF); }
+
exp : STRING
{ /* C strings are converted into array constants
with
an explicit null byte added at the end. Thus
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