GCC modified for the FreeChainXenon project
1ae7126989
This is sort of like r14-5514, but at block scope. Consider
struct A { A(int, int); };
void
g (int a)
{
A bar(auto(a), 42); // not a fn decl
}
where we emit error: 'auto' parameter not permitted in this context
which is bogus -- bar doesn't declare a function, so the auto is OK,
but we don't know it till we've seen the second argument. The error
comes from grokdeclarator invoked just after we've parsed the auto(a).
A possible approach seems to be to delay the auto parameter checking
and only check once we know we are indeed dealing with a function
declaration. For tparms, we should still emit the error right away.
PR c++/112482
gcc/cp/ChangeLog:
* decl.cc (grokdeclarator): Do not issue the auto parameter error while
tentatively parsing a function parameter.
* parser.cc (cp_parser_parameter_declaration_clause): Check it here.
gcc/testsuite/ChangeLog:
* g++.dg/cpp23/auto-fncast15.C: New test.
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