05-26-2014
Quote:
Originally Posted by
Corona688
Bad advice! Very dangerous! Unions do not work that way!
If you don't add the 'type' value to the structures, then it won't work properly in the union! It will refer to some other member.
I'm assuming that you misunderstood what I meant by 'tagged union'. It's the final data structure in my previous post, following the text which you quoted. In C, a tagged union is not a union; it is a struct containing a tag (or type) and a union.
Regards,
Alister
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LEARN ABOUT DEBIAN
extutils::xspp::node::argument
ExtUtils::XSpp::Node::Argument(3pm) User Contributed Perl Documentation ExtUtils::XSpp::Node::Argument(3pm)
NAME
ExtUtils::XSpp::Node::Argument - Node representing a method/function argument
DESCRIPTION
An ExtUtils::XSpp::Node subclass representing a single function or method argument such as
int foo = 0.
which would translate to an "ExtUtils::XSpp::Node::Argument" which has its "type" set to "int", its "name" set to "foo" and its "default"
set to 0..
METHODS
new
Creates a new "ExtUtils::XSpp::Node::Argument".
Named parameters: "type" indicating the C++ argument type, "name" indicating the variable name, and optionally "default" indicating the
default value of the argument.
uses_length
Returns true if the argument uses the XS length feature, false otherwise.
implementation_name
Returns the same as the "name" method unless the argument is of the "%length(something)" variant. In that case, "implementation_name"
returns a munged version of the name that addresses the name mangling done by xsubpp: "XSauto_length_of_somthing".
fix_name_in_code
Given a code string, replaces any occurrances of the name of this "Argument" with its implementation name. If the implementation name is
the same as the name, which is the most likely case, the code remains completely untouched.
Returns the potentially modified code.
ACCESSORS
type
Returns the type of the argument.
name
Returns the variable name of the argument variable.
default
Returns the default for the function parameter if any.
has_default
Returns whether there is a default for the function parameter.
perl v5.14.2 2011-12-20 ExtUtils::XSpp::Node::Argument(3pm)