Skip to content

Instantly share code, notes, and snippets.

@XProger

XProger/powf_fast.c

Last active January 10, 2024 19:33
Show Gist options
  • Save XProger/433701300086245e0583 to your computer and use it in GitHub Desktop.
Save XProger/433701300086245e0583 to your computer and use it in GitHub Desktop.
Download ZIP
fast powf function (IEEE-754 hack)
Raw
powf_fast.c
float powf_fast(float a, float b) {
union { float d; int x; } u = { a };
u.x = (int)(b * (u.x - 1064866805) + 1064866805);
return u.d;
}
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment