(readescape): No warning if digits in \x are all 0's.

From-SVN: r2318

(readescape): No warning if digits in \x are all 0's.
From-SVN: r2318
be63d912 · Richard Stallman · bf15a311 · be63d912
Commit be63d912 authored Oct 04, 1992 by Richard Stallman
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gcc/c-lex.c
+3 -0

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--- a/gcc/c-lex.c
+++ b/gcc/c-lex.c
@@ -845,6 +845,9 @@ readescape (ignore_ptr)
 	}
      if (! nonnull)
 	error ("\\x used with no following hex digits");
+      else if (count == 0)
+	/* Digits are all 0's.  Ok.  */
+	;
      else if ((count - 1) * 4 >= TYPE_PRECISION (integer_type_node)
 	       || (count > 1
 		   && ((1 << (TYPE_PRECISION (integer_type_node) - (count - 1) * 4))