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-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/cppmacro.c6
2 files changed, 9 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index bda64dc..1810deb 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -1,3 +1,8 @@
+2000-09-15 Greg McGary <greg@mcgary.org>
+
+ * cppmacro.c (check_trad_stringification): Check token
+ text pointers against limit before dereferencing.
+
2000-09-15 Joseph S. Myers <jsm28@cam.ac.uk>
* c-common.c (format_wanted_type): New structure.
diff --git a/gcc/cppmacro.c b/gcc/cppmacro.c
index 2b16fd47..82dfd7f 100644
--- a/gcc/cppmacro.c
+++ b/gcc/cppmacro.c
@@ -645,11 +645,13 @@ check_trad_stringification (pfile, info, string)
const cpp_token *token;
/* Find the start of an identifier. */
- while (!is_idstart (*p) && p < limit) p++;
+ while (p < limit && !is_idstart (*p))
+ p++;
/* Find the end of the identifier. */
q = p;
- while (is_idchar (*q) && q < limit) q++;
+ while (q < limit && is_idchar (*q))
+ q++;
/* Loop over the function macro arguments to see if the
identifier inside the string matches one of them. */