#### 5.1.8 Breakpoint Menus

Some programming languages (notably C`++` and Objective-C) permit a single function name to be defined several times, for application in different contexts. This is called overloading. When a function name is overloaded, ``break function`' is not enough to tell gdb where you want a breakpoint. You can use explicit signature of the function, as in ``break function(types)`', to specify which particular version of the function you want. Otherwise, gdb offers you a menu of numbered choices for different possible breakpoints, and waits for your selection with the prompt ``>`'. The first two options are always ``[0] cancel`' and ``[1] all`'. Typing `1` sets a breakpoint at each definition of function, and typing `0` aborts the `break` command without setting any new breakpoints.

For example, the following session excerpt shows an attempt to set a breakpoint at the overloaded symbol `String::after`. We choose three particular definitions of that function name:

         (gdb) b String::after
         [0] cancel
         [1] all
         [2] file:String.cc; line number:867
         [3] file:String.cc; line number:860
         [4] file:String.cc; line number:875
         [5] file:String.cc; line number:853
         [6] file:String.cc; line number:846
         [7] file:String.cc; line number:735
         > 2 4 6
         Breakpoint 1 at 0xb26c: file String.cc, line 867.
         Breakpoint 2 at 0xb344: file String.cc, line 875.
         Breakpoint 3 at 0xafcc: file String.cc, line 846.
         Multiple breakpoints were set.
         Use the "delete" command to delete unwanted
          breakpoints.
         (gdb)