https://llvm.org/bugs/show_bug.cgi?id=23281
Bug ID: 23281
Summary: clang allows invalid code with lambda expression
move-assignment
Product: clang
Version: trunk
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: C++11
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected], [email protected]
Classification: Unclassified
The following code compiles in clang++ 3.7 but is rejected by gcc and intel
compiler.
#include <utility>
int main() {
auto f = [](int x) { return 7*x; };
using T = decltype(f);
T h(f);
h = std::move(f);
return 0;
}
Also, the standard seems to disallow it:
http://eel.is/c++draft/expr.prim.lambda#20 – lambdas have deleted copy
assignment. Also, http://eel.is/c++draft/class.copy#20 says that means that
deleted copy assignment means there will be no move assignment.
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