October 16, 2020 [Issue 21316] New: NRVO not triggered for rvalue/ctor call | ||||
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https://issues.dlang.org/show_bug.cgi?id=21316 Issue ID: 21316 Summary: NRVO not triggered for rvalue/ctor call Product: D Version: D2 Hardware: All URL: http://dlang.org/ OS: All Status: NEW Severity: major Priority: P3 Component: dmd Assignee: nobody@puremagic.com Reporter: eyal@weka.io Example program: import std.stdio; struct S { this(int x) { writefln("%s", &this); } ~this() { writefln("%s", &this); } } unittest { auto f() { return S(1); } auto x = f(); } Running results in 2 different this ptrs, showing a copy had occurred: dmd -unittest -main -run testnrvo 7FFE98EAAD20 7FFE98EAAD48 -- |
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