[clang] [C2y] Handle FP-suffixes on prefixed octals (#141230) (PR #141695)

[Aaron Ballman via cfe-commits]

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@@ -1432,14 +1432,26 @@ void NumericLiteralParser::ParseNumberStartingWithZero(SourceLocation TokLoc) {
     Diags.Report(TokLoc, DiagId);
     ++s;
     DigitsBegin = s;
-    SawOctalPrefix = true;
+    radix = 8;
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AaronBallman wrote:

There's code below which also unconditionally sets `radix` to `8`; we should remove that and update the comments. We also seem to skip the octal digits twice (I think it's a noop to do it a second time, but it's still a code smell).

https://github.com/llvm/llvm-project/pull/141695