1 files changed, 126 insertions, 0 deletions
diff --git a/gdb/parent.c b/gdb/parent.c
new file mode 100644
index 0000000..38b845a
--- /dev/null
+++ b/gdb/parent.c
@@ -0,0 +1,126 @@
+#include <stdio.h>
+
+class math_stuff
+{
+   char name[40];
+   int value;
+
+public:
+
+   void bla();
+
+   math_stuff(char*);
+
+   ~math_stuff();
+
+   void add(int);
+
+   void print_value(char*);
+};
+
+void math_stuff::bla()
+{
+  printf("bla\n");
+}
+
+math_stuff::math_stuff(char* new_name)
+{
+  sprintf((char *)this->name,(char *)"MATH_STUFF_%s",new_name);
+  value = 0;
+}
+
+math_stuff::~math_stuff()
+{
+  printf((char *)"Deleting MATH_STUFF instance '%s'\n",this->name);
+}
+
+void math_stuff::add(int x)
+{
+  this->value += x;
+}
+
+void math_stuff::print_value(char *where)
+{
+  printf((char *)"current value of '%s' at '%s' = %d\n", this->name, where, this->value);
+}
+
+class derived : public math_stuff
+{
+  char *dname;
+  int val;
+
+public:
+  math_stuff stuff;
+  derived(char*);
+  ~derived();
+  void print_all(char*);
+};
+
+derived::derived(char *der_name)
+     : ((char *)"hello, world!"), stuff("derived stuff"), val(10)
+{
+  printf((char *)"derived name = %s\n", der_name);
+  dname = der_name;
+  stuff.add(6);
+  stuff.print_value ((char *)"grind");
+}
+
+derived::~derived()
+{
+  printf ((char *)"Good bye! \n");
+}
+
+derived::print_all(char *msg)
+{
+  printf((char *)"Here's the lowdown:\n");
+  printf((char *)"My name is %s\n", dname);
+  printf((char *)"My value = %d\n", val);
+  stuff.print_value ((char *)"low");
+  this->print_value((char *)"down");
+  printf((char *)"That's all you get tonight.\n\n");
+}
+
+main()
+{
+  int pid;
+  int i;
+ 
+  pid = vfork();
+  if (pid > 0)
+    printf(" the inferior pid of the child is %d\n",pid);
+  if (pid == 0)
+    {
+/*      execl ("/bin/sh", "sh", "-c",argv[1],0);*/
+
+      math_stuff* a;
+      derived* d;
+      math_stuff b $ (" no gnus are good gnus ");
+      int child;
+      child = getpid();
+      printf( " the child from parent.c is %d\n",child);
+      ptrace (0);   
+     
+      a = new math_stuff((char *)"a");
+      
+      d = new derived((char *)"two words");
+      
+      a->add(2);
+      a->add(4);
+      a->add(5);
+      a->print_value((char *)"here");
+      a->add(7);
+      a->print_value((char *)"there");
+      a->add(3);
+      a->add(1);
+      a->print_value((char *)"end");
+      
+      d->print_all ((char *)"all");
+      
+      delete a;
+      delete d;
+      exit(0);
+    }
+  i = 5;
+  i = 6;
+  i = 7;
+}