GCC also has libquadmath which provides 128-bit floats by sticking 2 64-bit floats together. More than twice as slow, but extra precision just by changing a typ

GCC also has libquadmath which provides 128-bit floats by sticking 2 64-bit floats together. More than twice as slow, but extra precision just by changing a type and linking the library. Works great in XaoS, which is where I like my extra precision, but a deep fractal zoom can consume as much precision as you can muster. Imagine a 64kbit-precision Mandelbrot zoom!