Example Doxyfile, with custom side_effect command
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Sample function header
/**
* @brief classify 5 cards according to poker
* rules
*
* Determines whether the hand contains a
* straight, a flush, four-of-a-kind, and/or
* three-of-a-kind; determines the number of
* pairs.
*
* @side_effect stores the classification into
* external variables.
*/
void analyze_hand(void){
};