* cp-support.c (first_component_command): Return if no arguments.

2 files changed, 12 insertions, 2 deletions

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index d36d4ce5e6..75b9d934e1 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,7 @@
+2008-03-19  Aleksandar Ristovski <aristovski@qnx.com>
+
+	* cp-support.c (first_component_command): Return if no arguments.
+
 2008-03-28  Carlos O'Donell  <carlos@codesourcery.com>
 
 	* ser-mingw.c (ser_windows_open): Open requested name.
diff --git a/gdb/cp-support.c b/gdb/cp-support.c
index 5c610cca66..696888e04e 100644
--- a/gdb/cp-support.c
+++ b/gdb/cp-support.c
@@ -892,8 +892,14 @@ maint_cplus_command (char *arg, int from_tty)
 static void
 first_component_command (char *arg, int from_tty)
 {
-  int len = cp_find_first_component (arg);
-  char *prefix = alloca (len + 1);
+  int len;  
+  char *prefix; 
+
+  if (!arg)
+    return;
+
+  len = cp_find_first_component (arg);
+  prefix = alloca (len + 1);
 
   memcpy (prefix, arg, len);
   prefix[len] = '\0';