Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Welcome To Ask or Share your Answers For Others

Categories

0 votes
804 views
in Technique[技术] by (71.8m points)

optimization - Is the inequality operator faster than the equality operator?

I know this is a micro-optimization, so I ask out of pure curiosity.

Logically, a microprocessor does not need to compare all the bits of both operands of an equality operator in order to determine a "FALSE" result.

Note, this is programming-related because it affects the execution speed of a program.

Question&Answers:os

与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome To Ask or Share your Answers For Others

1 Answer

0 votes
by (71.8m points)

Usually, the microprocessor does comparison using electrical gates and not step by step like that. It checks all bits at once.


与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…
Welcome to OStack Knowledge Sharing Community for programmer and developer-Open, Learning and Share
Click Here to Ask a Question

...