I tested for hiv 4 generation test(compo p24 ) at 46 day and result was non reactive ,does this mean i am safe?

It is 99% conclusive and please note that no medical test has 100% accuracy.

It means you did not get HIV from your encounter 46 days ago, However, HIV is only one of the STDs. A condom may not protect against HPV, Herpes, LGV, syphilis, pubic lice etc. It would be prudent to see your doctor for an evaluation. Visit this site for information: https://www.cdc.gov/std/default.htm Wish you good health!

People have tested positive after three months, so if you are still concerned test again in 6 weeks. For now you are safe, but if still worried test again in future.