From: Richard Kenner <kenner@gcc.gnu.org>
Date: Mon, 18 Apr 1994 19:25:32 +0000 (-0400)
Subject: (yylex): If FP value is NaN, use value of zero.
X-Git-Tag: misc/cutover-egcs-0~6872
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a47a0ed53b1068e5100befb6bb6b7d5af211a382;p=thirdparty%2Fgcc.git

(yylex): If FP value is NaN, use value of zero.

From-SVN: r7071
---

diff --git a/gcc/c-lex.c b/gcc/c-lex.c
index 997e9a0fcdc1..ad34e601327b 100644
--- a/gcc/c-lex.c
+++ b/gcc/c-lex.c
@@ -1407,6 +1407,12 @@ yylex ()
 	    if (garbage_chars > 0)
 	      error ("garbage at end of number");
 
+	    /* If the result is not a number, assume it must have been
+	       due to some error message above, so silently convert
+	       it to a zero.  */
+	    if (REAL_VALUE_ISNAN (value))
+	      value = dconst0;
+
 	    /* Create a node with determined type and value.  */
 	    if (imag)
 	      yylval.ttype = build_complex (convert (type, integer_zero_node),