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re PR c++/80873 (ICE in tsubst_copy when trying to use an overloaded function without a definition in a lambda)

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2017-10-13  Paolo Carlini  <paolo.carlini@oracle.com>

	PR c++/80873
	* g++.dg/cpp1y/auto-fn41.C: New.
	* g++.dg/cpp1y/auto-fn42.C: Likewise.

From-SVN: r253733
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Paolo Carlini 2017-10-13 16:50:13 +00:00 committed by Paolo Carlini
parent 96ec425f5d
commit 8de7190350
3 changed files with 50 additions and 0 deletions
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gcc/testsuite/ChangeLog
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2017-10-13 Paolo Carlini <paolo.carlini@oracle.com>
PR c++/80873
* g++.dg/cpp1y/auto-fn41.C: New.
* g++.dg/cpp1y/auto-fn42.C: Likewise.
2017-10-13 David Malcolm <dmalcolm@redhat.com>
* g++.dg/cpp0x/udlit-extern-c.C: New test case.

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gcc/testsuite/g++.dg/cpp1y/auto-fn41.C Normal file
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// PR c++/80873
// { dg-do compile { target c++14 } }
struct S {};
auto overloaded(S &);
template <typename T>
int overloaded(T &) {
return 0;
}
template <typename T>
auto returns_lambda(T &param) {
return [&] {
overloaded(param); // { dg-error "before deduction" }
};
}
int main() {
S s;
returns_lambda(s);
}

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gcc/testsuite/g++.dg/cpp1y/auto-fn42.C Normal file
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// PR c++/80873
// { dg-do compile { target c++14 } }
struct Buffer {};
auto parse(Buffer b);
template <typename T> void parse(T target);
template <typename T>
auto field(T target) {
return [&] {
parse(target);
};
}
template <typename T>
void parse(T target) {}
auto parse(Buffer b) {
field(0);
}