Fix preprocessor concat with empty arg

2014-04-12 12:00:13 +08:00
parent 9714d2e75f
commit 6e56bb387d
5 changed files with 56 additions and 6 deletions
--- a/tests/tests2/67_macro_concat.c
+++ b/tests/tests2/67_macro_concat.c
@ -0,0 +1,14 @@
+#include <stdio.h>
+
+#define P(A,B) A ## B ; bob
+#define Q(A,B) A ## B+
+
+int main(void)
+{
+    int bob, jim = 21;
+    bob = P(jim,) *= 2;
+    printf("jim: %d, bob: %d\n", jim, bob);
+    jim = 60 Q(+,)3;
+    printf("jim: %d\n", jim);
+    return 0;
+}