abs()

which is faster, /prog/?

const int SIZE_OF_DOUBLE = sizeof(double) * 8;
double absoluteValue = (double)(bitset<SIZE_OF_DOUBLE>((unsigned long)value).set(SIZE_OF_DOUBLE - 1, 0).to_ulong());

VS.

double absoluteValue = abs(value);

OR

is there an easier way to unset a double-precision value's sign bit?

>>1
Wow. This is truely expert programmer quality. Always treat the compiler designers as incompetent shitnuggets and write your own OMG OPTIMIZED solutions. Paying attention to the efficiency and complexity of your own code is secondary. You guys should start writing malloc() and new implementations of your own to keep yourselves as far as possible from any real work.