October 2004
Intermediate to advanced
336 pages
6h 27m
English
Content preview from Find the Bug A Book of Incorrect Programs
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Memory Copy
This function copies an area of memory. This function is passed two blocks of memory, a target and a source, defined as type char * in C. It is also passed the length of the block to copy.
The copying operation is simple if the source and target do not overlap. However, if they do overlap, the copy has to be done in the correct direction—either starting at the beginning and working forward, or starting at the end and working backward—depending on how they overlap. Otherwise, bytes of data will be copied into some memory locations before the bytes that are currently at those memory locations have been moved where they belong; when the ...
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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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