https://llvm.org/bugs/show_bug.cgi?id=28772
Bug ID: 28772
Summary: libcxx's string_view breaks C++11 code (r276238)
Product: libc++
Version: unspecified
Hardware: PC
OS: All
Status: NEW
Severity: normal
Priority: P
Component: All Bugs
Assignee: unassignedclangb...@nondot.org
Reporter: v...@apple.com
CC: llvm-bugs@lists.llvm.org, mclow.li...@gmail.com
Classification: Unclassified
The following code breaks when compiled with ToT clang+libcxx using -std=c++11:
```
#include <string>
int main() {
std::string A = "Hello";
const char *B = "world";
A.assign(B, 0, 1);
return 0;
}
```
There is an ambiguous implicit conversion:
```
A.assign(B, 0, 1);
~~^~~~~~
/Users/vk/Desktop/llvm/build/bin/../include/c++/v1/string:966:19: note:
candidate function
basic_string& assign(const basic_string& __str, size_type __pos, size_type
__n=npos);
^
/Users/vk/Desktop/llvm/build/bin/../include/c++/v1/string:968:19: note:
candidate function
basic_string& assign(__self_view __sv, size_type pos, size_type n=npos);
```
This has broken our internal arm test suite.
I suspect this was caused by libcxx/r276238. I don't think this functionality
should break C++11 code.
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