Added setjmp_test.cpp

setjmp_test.cpp

@@ -0,0 +1,26 @@
+#include <stdio.h>
+#include <setjmp.h>
+
+void f(int* a, int* b){
+	*a += 3;
+	*b += 5;
+}
+
+signed main(){
+	int* heap_var = new int(1);
+	int stack_var = 2;
+
+	jmp_buf buf;
+	
+	int j = setjmp(buf);
+
+	printf("heap: %d\nstack: %d\n---\n", *heap_var, stack_var);
+
+	if(j){
+		return 0;
+	}
+
+	f(heap_var, &stack_var);
+
+	longjmp(buf, 1);
+}