gotcha

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gotcha /n./ A misfeature of a system, especially a programming language or environment, that tends to breed bugs or mistakes because it both enticingly easy to invoke and completely unexpected and/or unreasonable in its outcome. For example, a classic gotcha in C is the fact that `if (a=b) {code;}' is syntactically valid and sometimes even correct. It puts the value of `b' into `a' and then executes `code' if `a' is non-zero. What the programmer probably meant was `if (a==b) {code;}', which executes `code' if `a' and `b' are equal.


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