Question

How do I clear all breakpoints in GDB?

Answer and Explanation

To clear all breakpoints in GDB (GNU Debugger), you can use the delete command followed by a range or a wildcard. Here's how to do it:

1. Using the `delete` command with a range:

- If you know the breakpoint numbers, you can delete them by specifying a range. For example, if you have breakpoints numbered 1 through 5, you can delete them all with the command:

delete 1-5

- This command will remove breakpoints 1, 2, 3, 4, and 5.

2. Using the `delete` command with a wildcard:

- If you don't know the breakpoint numbers or want to delete all breakpoints regardless of their numbers, you can use the wildcard ``. The command is:

delete breakpoints

- This command will remove all breakpoints that are currently set.

3. Alternative using `delete` with no arguments:

- You can also use the `delete` command without any arguments. This will prompt GDB to ask if you want to delete all breakpoints. You can then confirm by typing 'y' or 'yes'.

delete

- GDB will then ask: "Delete all breakpoints? (y or n)"

- Type 'y' and press Enter to delete all breakpoints.

4. Verifying Breakpoint Deletion:

- After using any of the above methods, you can verify that all breakpoints have been cleared by using the info breakpoints command. If no breakpoints are set, GDB will display a message indicating that there are no breakpoints.

info breakpoints

- If no breakpoints are set, GDB will output something like: "No breakpoints or watchpoints."

In summary, the most common and efficient way to clear all breakpoints in GDB is by using the command delete breakpoints. This will remove all breakpoints regardless of their numbers.

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