February 2013
Intermediate to advanced
538 pages
20h 55m
English
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Name
set_error_handler
Synopsis
string set_error_handler(string function)Sets the named function as the current error handler, or unsets
the current error handler if function is
NULL. The error-handler function is
called whenever an error occurs; the function can do whatever it
wants, but typically will print an error message and clean up after a
critical error happens.
The user-defined function is called with two parameters, an error code and a string describing the error. Three additional parameters may also be supplied—the filename in which the error occurred, the line number at which the error occurred, and the context in which the error occurred (which is an array pointing to the active symbol table).
set_error_handler() returns
the name of the previously installed error-handler function, or
false if an error occurred while
setting the error handler (e.g., when
function doesn’t exist).
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.