zturner added inline comments.
================
Comment at: unittests/tools/lldb-server/tests/MessageObjects.cpp:167
+ std::stringstream ss;
+ ss << std::hex << std::setw(2) << std::setfill('0') << register_id;
+ std::string hex_id = ss.str();
----------------
jmajors wrote:
> zturner wrote:
> > Is this the same as `std::string hex_id = llvm::utostr(register_id);`?
> No. The register IDs are all two nibbles wide, so I need the setw & setfill
> (or equivalent).
Bear with me here, I'm //determined// to kill this `stringstream` ;-)
How about `std::string hex_id = llvm::formatv("{0:x-2}", register_id);`
```
x = lowercase hex.
- means don't print the `0x` prefix.
2 means print at least 2 digits.
```
https://reviews.llvm.org/D32930
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