This is an unofficial snapshot of the ISO/IEC JTC1 SC22 WG21 Core Issues List revision 117b. See http://www.open-std.org/jtc1/sc22/wg21/ for the official list.
2025-08-11
296. Can conversion functions be static?Section: 11.4.8.3 [class.conv.fct] Status: CD1 Submitter: Scott Meyers Date: 5 Jul 2001[Moved to DR at October 2002 meeting.]
May user-defined conversion functions be static? That is, should this compile?
class Widget {
public:
static operator bool() { return true; }
};
All my compilers hate it. I hate it, too. However, I don't see anything in 11.4.8.3 [class.conv.fct] that makes it illegal. Is this a prohibition that arises from the grammar, i.e., the grammar doesn't allow "static" to be followed by a conversion-function-id in a member function declaration? Or am I just overlooking something obvious that forbids static conversion functions?
Proposed Resolution (4/02):
Add to 11.4.8.3 [class.conv.fct] as a new paragraph 7:
Conversion functions cannot be declared static.
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