Christoph (Derean's coworker) was presented with a daunting challenge: flip all of the bits of an integer (representing a bitfield) to zero. Many programmers would run away and never look back at just the thought of being given such a task. But not Christoph; being the courageous coder he was, he took this vexing problem head-on and engineered a rather elegant solution ...
#define GENBIT(x) 1<<X #define NUMBITS 32 // ED: Snip ... unsigned int resetBits(unsigned int bitfield) { int index=0; for(index=0;index<NUMBITS;INDEX++) { unsigned int flag; flag = GENBIT(index); flag = ~flag; bitfield = bitfield & flag; } return bitfield; }
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