I don’t get it, and tried to look it up without success. The only way I get it i... | Hacker News

Hacker News new | past | comments | ask | show | jobs | submit

login

SV_BubbleTime on Nov 29, 2020 | parent | context | favorite | on: What is your favorite C programming trick? (2009)

I don’t get it, and tried to look it up without success. The only way I get it is if it also reverses logic was a 0 start value becomes true. But how is this different from !x ?

saagarjha on Nov 29, 2020 [–]

!!x gives you 0 if x is zero and 1 if x is anything else. !x gives you 1 if x is zero and 0 if x is anything else.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact