lex: stringify args in function macros

2 files changed, 8 insertions, 3 deletions

diff --git a/test/pp.c b/test/pp.c
index 2e6193e..f850c08 100644
--- a/test/pp.c
+++ b/test/pp.c
@@ -5,5 +5,7 @@
 int
 main(void)
 {
+   printf("%s\n",STR ( ok /1   "\n"\n ;.& 
+            05.5));
    hi(ADD(Foo, SQR(Bar+1)));
 }
diff --git a/test/pp.h b/test/pp.h
index e914800..5ac7aac 100644
--- a/test/pp.h
+++ b/test/pp.h
@@ -1,18 +1,21 @@
 #ifndef GUARD
 #define GUARD
 
+extern int printf(const char *, ...);
 extern warnhere();
 #define Foo 9
 void hi(int x) {
-   extern int printf(const char *, ...);
    printf("hi from header ;%d\n", x);
 }
 #if 1
 #endif
 #elifndef Ww
 #define Bar 7
-#define SQR_(x) (x)*(x)
-#define SQR(y) SQR_(y)
+#define SQR_(x) ((x)*(x))
+#define SQR(y) SQR_(1+(y)-1)
 #define ADD(a,b) (a)+(b)
+#define STR(h) #h 
 
 #endif
+
+extern int printf(const char *, ...);