labath added inline comments.
================
Comment at: source/Plugins/Language/CPlusPlus/LibStdcppUniquePointer.cpp:129
if (m_ptr_obj->GetValueAsUnsigned(0) == 0) {
stream.Printf("nullptr");
----------------
granata.enrico wrote:
> This is very nitpick-y but why not
>
> lldb::addr_t ptr_value = m_ptr_obj->GetValueAsUnsigned(LLDB_INVALID_ADDRESS)
> switch (ptr_value) {
> case 0: stream.Printf("nullptr"); break;
> case LLDB_INVALID_ADDRESS: return false;
> default: stream.Printf("0x%" PRIx64, ptr_value); break;
> }
>
> modulo clang-formatting the above, of course.
>
I've changed this to:
```
uint64_t ptr_value = m_ptr_obj->GetValueAsUnsigned(0, &success);
if (!success)
return false;
if (ptr_value == 0)
stream.Printf("nullptr");
else
stream.Printf("0x%" PRIx64, ptr_value);
```
This should address the issue of not printing a bogus value if we fail to read
the value, but avoid the case where the pointer value *is* 0xffff.. (which it
can legitimately be, e.g. with custom deleters, or if the inferior corrupts
it's memory).
At that point, the switch is not necessary.
https://reviews.llvm.org/D26403
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