Add llvm::hexDigitValue to convert single characters to hex.
This is duplicated in a couple places in the codebase. Adopt this in APFloat.
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@172851 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Support/APFloat.cpp b/lib/Support/APFloat.cpp
index 4a7a5d1..2ac86a2 100644
--- a/lib/Support/APFloat.cpp
+++ b/lib/Support/APFloat.cpp
@@ -16,6 +16,7 @@
#include "llvm/ADT/APSInt.h"
#include "llvm/ADT/FoldingSet.h"
#include "llvm/ADT/Hashing.h"
+#include "llvm/ADT/StringExtras.h"
#include "llvm/ADT/StringRef.h"
#include "llvm/Support/ErrorHandling.h"
#include "llvm/Support/MathExtras.h"
@@ -101,26 +102,6 @@
return c - '0';
}
-static unsigned int
-hexDigitValue(unsigned int c)
-{
- unsigned int r;
-
- r = c - '0';
- if (r <= 9)
- return r;
-
- r = c - 'A';
- if (r <= 5)
- return r + 10;
-
- r = c - 'a';
- if (r <= 5)
- return r + 10;
-
- return -1U;
-}
-
/* Return the value of a decimal exponent of the form
[+-]ddddddd.