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Marek Polacek ac6eaa55a5 c++: Fix paren init of aggregates in unevaluated context [PR92947]
When I implemented C++20 parenthesized initialization of aggregates
I introduced this bogus cp_unevaluated_operand check, thus disabling
this feature in unevaluated context.  Oop.

Removing the check turned up another bug: I wasn't checking the
return value of digest_init.  So when constructible_expr called
build_new_method_call_1 to see if we can construct one type from
another, it got back a bogus INIT_EXPR that looked something like
*(struct T &) 1 = <<< error >>>.  But that isn't the error_mark_node,
so constructible_expr thought we had been successful in creating the
ctor call, and it gave the wrong answer.  Covered by paren-init17.C.

	PR c++/92947 - Paren init of aggregates in unevaluated context.
	* call.c (build_new_method_call_1): Don't check
	cp_unevaluated_operand.  Check the return value of digest_init.

	* g++.dg/cpp2a/paren-init21.C: New test.
2020-02-07 16:59:09 -05:00
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fixincludes Fix missing SCNuMAX defines in inttypes.h on hpux11.[01]* 2020-01-25 12:20:24 -05:00
gcc c++: Fix paren init of aggregates in unevaluated context [PR92947] 2020-02-07 16:59:09 -05:00
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