cleanup library and some basic tests. Includes, add guards to includes
diff --git a/library/memory_buffer_alloc.c b/library/memory_buffer_alloc.c
index 6cde16a..b7d583b 100644
--- a/library/memory_buffer_alloc.c
+++ b/library/memory_buffer_alloc.c
@@ -33,8 +33,13 @@
#include <string.h>
#if defined(POLARSSL_MEMORY_DEBUG)
+#if defined(POLARSSL_PLATFORM_C)
+#include "polarssl/platform.h"
+#else
#include <stdio.h>
-#endif
+#define polarssl_fprintf fprintf
+#endif /* POLARSSL_PLATFORM_C */
+#endif /* POLARSSL_MEMORY_DEBUG */
#if defined(POLARSSL_MEMORY_BACKTRACE)
#include <execinfo.h>
#endif
@@ -43,12 +48,6 @@
#include "polarssl/threading.h"
#endif
-#if defined(POLARSSL_PLATFORM_C)
-#include "polarssl/platform.h"
-#else
-#define polarssl_fprintf fprintf
-#endif
-
/* Implementation that should never be optimized out by the compiler */
static void polarssl_zeroize( void *v, size_t n ) {
volatile unsigned char *p = v; while( n-- ) *p++ = 0;