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Returning from a function
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Returning from a function
return
return
expression
You can cancel execution of a function call with the return command. If you give an expression argument, its value is used as the function’s return value.
When you use
return, GDB discards the selected stack frame (and all frames within it). You can
think of this as making the discarded frame return prematurely. If you wish to
specify a value to be returned, give that value as the argument to return.
This pops the selected stack frame (see
Selecting a frame), and any other frames inside of it, leaving its caller as the innermost
remaining frame. That frame becomes selected. The specified value is stored in the
registers used for returning values of functions.
The
return command does not resume execution; it leaves the program stopped in the state
that would exist if the function had just returned.
In contrast, the
finish command (see Continuing and stepping) resumes execution until the selected stack frame returns naturally.
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