[llvm-bugs] [Bug 30303] New: error: no matching function for call to '__ptr_in_range'

[via llvm-bugs]

https://llvm.org/bugs/show_bug.cgi?id=30303

            Bug ID: 30303
           Summary: error: no matching function for call to
                    '__ptr_in_range'
           Product: libc++
           Version: unspecified
          Hardware: PC
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: P
         Component: All Bugs
          Assignee: unassignedclangbugs at nondot.org
          Reporter: hans at chromium.org
                CC: llvm-bugs at lists.llvm.org, mclow.lists at gmail.com,
                    mclow at qti.qualcomm.com
    Classification: Unclassified

The following code used to compile, but now fails as below. This is reduced
from some code in Chromium.

#include <string>
#include <vector>
#include <cstdint>
using namespace std;

void f(string &s, vector<uint8_t> &v) {
  s.append(v.begin(), v.end());
}


In file included from /tmp/a.cc:1:
/work/llvm/build.release/bin/../include/c++/v1/string:2180:14: error: no
matching function for call to '__ptr_in_range'
        if ( __ptr_in_range(&*__first, data(), data() + size()))
             ^~~~~~~~~~~~~~
/tmp/a.cc:7:5: note: in instantiation of function template specialization
'std::__1::basic_string<char, std::__1::char_traits<char>,
std::__1::allocator<char> >::append<std::__1::__wrap_iter<unsigned char *> >'
requested here
  s.append(v.begin(), v.end());
    ^
/work/llvm/build.release/bin/../include/c++/v1/string:2160:6: note: candidate
template ignored: deduced conflicting types for parameter '_Tp' ('unsigned
char' vs. 'char')
bool __ptr_in_range (const _Tp* __p, const _Tp* __first, const _Tp* __last)
     ^
1 error generated.




I believe this is due to:

------------------------------------------------------------------------
r280643 | marshall | 2016-09-04 18:54:30 -0700 (Sun, 04 Sep 2016) | 1 line

Fix Bug 30240 - std::string: append(first, last) error when aliasing.  Add test
cases for append/insert/assign/replace while we're at it, and fix a similar bug
in insert.
------------------------------------------------------------------------

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