Diff: main.cpp

Revision:

0:84a4229a4f34

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Jul 16 06:16:02 2011 +0000
@@ -0,0 +1,57 @@
+#include "mbed.h"
+#include <new>
+#include <setjmp.h>
+
+#define MAX 320
+
+#undef USE_MALLOC // malloc or new
+
+Serial pc(USBTX, USBRX);
+jmp_buf jbuf;
+
+void no_memory () {
+    pc.printf("new: no memory!\r\n");
+    longjmp(jbuf, 1);
+//    exit(-1);
+}
+
+int main() {
+    volatile int i; // volatile
+    int j;
+    char *dummy[MAX];
+
+//    set_new_handler(0); // return null
+    set_new_handler(no_memory); // new handler function
+
+    if (setjmp(jbuf) == 0) {
+        // allocate to memory
+
+        for (i = 0; i < MAX; i ++) {
+            pc.printf("%d, ", i);
+#ifdef USE_MALLOC
+            dummy[i] = (char*)malloc(100);
+#else
+            dummy[i] = new char[100];
+#endif
+            if (dummy[i] == NULL) {
+                pc.printf("malloc: no memory!\r\n");
+                break;
+            }
+        }
+        
+    } else {
+        // return from longjmp
+
+    }
+
+    pc.printf("allocated %d Bytes\r\n", i * 100);
+
+    for (j = 0; j < i; j ++) {
+#ifdef USE_MALLOC
+        delete [] dummy[j];
+#else
+        free(dummy[j]);
+#endif
+    }
+
+}