?? mul64.c
字號(hào):
long long __mul64(long long arg1, long long arg2)
{
long long result = 0;
unsigned long long multiplier = (unsigned long long)arg2;
while (multiplier)
{
if (multiplier & 1)
{
result = result + arg1;
}
arg1 <<= 1;
multiplier >>= 1;
}
return result;
}
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