C++ compilability: "not" is a C++ keyword, avoid it

see http://en.cppreference.com/w/cpp/language/operator_alternative

1 files changed, 1 insertions, 1 deletions

diff --git a/src/regparse.h b/src/regparse.h
index ac8758bd1..1f7855df8 100644
--- a/src/regparse.h
+++ b/src/regparse.h
@@ -247,7 +247,7 @@ typedef struct {
 typedef struct {
   NodeBase base;
   int ctype;
-  int not;
+  int is_not;
 } CtypeNode;
 
 typedef struct _Node {