1 files changed, 4 insertions, 7 deletions
diff --git a/gcc/cpplex.c b/gcc/cpplex.c
index a15fcca..f9af8b7 100644
--- a/gcc/cpplex.c
+++ b/gcc/cpplex.c
@@ -1601,13 +1601,10 @@ static unsigned int
 hex_digit_value (c)
      unsigned int c;
 {
-  if (c >= 'a' && c <= 'f')
-    return c - 'a' + 10;
-  if (c >= 'A' && c <= 'F')
-    return c - 'A' + 10;
-  if (c >= '0' && c <= '9')
-    return c - '0';
-  abort ();
+  if (hex_p (c))
+    return hex_value (c);
+  else
+    abort ();
 }
 
 /* Parse a '\uNNNN' or '\UNNNNNNNN' sequence.  Returns 1 to indicate