[hackers] [scc] Add test for nested macro expansion || Roberto E. Vargas Caballero

[git]

commit 8b47bd6c54891baebf6a1083c7b1f6fa0402b8e4
Author:     Roberto E. Vargas Caballero <k...@shike2.com>
AuthorDate: Sun Sep 27 10:28:19 2015 +0200
Commit:     Roberto E. Vargas Caballero <k...@shike2.com>
CommitDate: Sun Sep 27 10:28:19 2015 +0200

    Add test for nested macro expansion
    
    This test also check what happens when a macro with arguments  is
    found without them.

diff --git a/cc1/tests/test029.c b/cc1/tests/test029.c
new file mode 100644
index 0000000..3bdd2c9
--- /dev/null
+++ b/cc1/tests/test029.c
@@ -0,0 +1,36 @@
+
+/*
+name: TEST029
+description: Test of nested expansion and refusing macro without arguments
+comments: f(2) will expand to 2*g, which will expand to 2*f, and in this
+          moment f will not be expanded because the macro definition is
+          a function alike macro, and in this case there is no arguments.
+output:
+test029.c:34: error: redefinition of 'f1'
+F2
+G3     F2      f1
+{
+\
+A4     I       f
+       A4      #I2     *I
+}
+test029.c:35: error: 'f' undeclared
+*/
+
+
+#define f(a) a*g
+#define g f
+
+int
+f1(void)
+{
+       int f;
+
+       f(2);
+}
+
+int
+f1(void)
+{
+       f(2);
+}