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madex/div10.c

Created October 20, 2014 10:06
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division by 10 as multply an shift.
Raw
div10.c
// (uint64_t val) 26 till 11184819 correct, (uint32_t val) 19 bis 81920 correct
#define BITS 19
#define MUL (((1L << BITS)/10) + 1)
unsigned long div10(unsigned long val) {
return ((unsigned long) val * MUL) >> BITS;
}
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