Double

Question

What is the difference between double and long double?

Answer 1

On most architectures: none. On x86: double uses MMX registers and is 64-bits. long double uses the FPU registers and is 80-bits. Because of the quirky nature of the FPU, MMX tends to be faster.

Answer 2

Though i didn't get the whole idea of what you said but thank you for your answer👍