fix: removed signed bitwise operations

1 files changed, 4 insertions, 3 deletions

diff --git a/sys/cmd/cc/pp.c b/sys/cmd/cc/pp.c
index 57cd5e2..737e018 100644
--- a/sys/cmd/cc/pp.c
+++ b/sys/cmd/cc/pp.c
@@ -392,11 +392,12 @@ enum
     PParg  = 0x03,
     PPcat  = 0x04,
     PPstr  = 0x05,
-    PPvar  = 0x80,
 
     PPnarg = 30,
 };
 
+#define PPvar 0x80u
+
 // -----------------------------------------------------------------------
 // preprocessor functions
 
@@ -648,8 +649,8 @@ expandmacro(Lexer *lx, Sym *s, byte *dst)
         strcpy(dst, s->macro + 2);
         return str·len(s->macro)-2;
     }
-    dots  =  *s->macro & PPvar;
-    nargs = (*s->macro & ~PPvar); 
+    dots  =  (ubyte)s->macro[0] & PPvar;
+    nargs =  (ubyte)s->macro[0] & (~PPvar); 
 
     b = getnsbyte(lx);
     if (b != '(') {