I use Error. I just discovered it about 2 months ago and I love it. The neatest thing about it is that it only comes with one error defined. You define your own errors, which means that your errors are meaningful to you. :-)

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We are the carpenters and bricklayers of the Information Age.

Don't go borrowing trouble. For programmers, this means Worry only about what you need to implement.

Please remember that I'm crufty and crochety. All opinions are purely mine and all code is untested, unless otherwise specified.