cprintf: properly deal with pointer types

src/base/varargs.hh

@@ -147,6 +147,20 @@ struct Any : public Base<RECV>
     }
 };
 
+template <typename T, class RECV>
+struct Any<T *, RECV> : public Base<RECV>
+{
+    const T *argument;
+
+    Any(const T *arg) : argument(arg) {}
+
+    virtual void
+    add_arg(RECV &receiver) const
+    {
+        receiver.add_arg(argument);
+    }
+};
+
 template <class RECV>
 struct Argument : public RefCountingPtr<Base<RECV> >
 {
@@ -156,6 +170,8 @@ struct Argument : public RefCountingPtr<Base<RECV> >
     Argument(const Null &null) { }
     template <typename T>
     Argument(const T& arg) : Base(new Any<T, RECV>(arg)) { }
+    template <typename T>
+    Argument(const T* arg) : Base(new Any<T *, RECV>(arg)) { }
 
     void
     add_arg(RECV &receiver) const

src/unittest/cprintftest.cc

@@ -34,6 +34,7 @@
 #include <sstream>
 
 #include "base/cprintf.hh"
+#include "base/misc.hh"
 
 using namespace std;
 
@@ -43,6 +44,14 @@ main()
     char foo[] = "foo";
     cprintf("%s\n", foo);
 
+    string _bar = "asdfkhasdlkfjhasdlkfhjalksdjfhalksdjhfalksdjfhalksdjhf";
+    int length = 11;
+    char bar[length + 1];
+    bar[length] = 0;
+    
+    memcpy(bar, _bar.c_str(), length);
+    warn("%s\n", bar);
+
     cprintf("%d\n", 'A');
     cprintf("%shits%%s + %smisses%%s\n", "test", "test");
     cprintf("%%s%-10s %c he went home \'\"%d %#o %#x %1.5f %1.2E\n",