| The ground truth of standards |
| ============================= |
| |
| Like any modern libc, LLVM libc also supports a wide number of standards and |
| extensions. To avoid developing headers, wrappers and sources in a disjointed |
| fashion, LLVM libc employs ground truth files. These files live under the |
| ``spec`` directory and list ground truth corresponding the ISO C standard, the |
| POSIX extension standard, etc. For example, the path to the ground truth file |
| for the ISO C standard is ``spec/stdc.td``. Tools like the header generator |
| (described in the header generation document), docs generator, etc. use the |
| ground truth files to generate headers, docs etc. |
