When working with embedded systems, it is sometimes important to do dirty little hacks. There are many ways to call upon the dark magic, though a large number of them are pointer or string tricks, often sacrificing readability and portability for memory or performance. There is a local benefit.
As a contractor, James runs in to his fair share of funny things in firmware. The following code, however, did not make him laugh.
// write the message to a buffer char buffer[N]; sprinf(buffer, "%s: %s\n\r",header,value); // remove the carriage return int len = strlen(buffer); buffer[len-2] = 0;
You'll get bonus points if you can figure out why I think strlen is redundant.
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