diff options
author | (no author) <(no author)@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2001-05-25 21:10:58 +0000 |
---|---|---|
committer | (no author) <(no author)@b2dd03c8-39d4-4d8f-98ff-823fe69b080e> | 2001-05-25 21:10:58 +0000 |
commit | e149ee88cf53bb5665ab240a138be41d0b337ea8 (patch) | |
tree | 6e0ff9f8c510431cf675ca9be2640d8761085b97 /missing/hypot.c | |
parent | 99020d6e50702eb371111d73280eb80b4b29ba5b (diff) |
This commit was manufactured by cvs2svn to create tag
'v1_6_4_preview4'.
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/tags/v1_6_4_preview4@1459 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
Diffstat (limited to 'missing/hypot.c')
-rw-r--r-- | missing/hypot.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/missing/hypot.c b/missing/hypot.c new file mode 100644 index 0000000000..aad5259e92 --- /dev/null +++ b/missing/hypot.c @@ -0,0 +1,17 @@ +/* public domain rewrite of hypot */ + +#include <math.h> + +double hypot(x,y) + double x, y; +{ + if (x < 0) x = -x; + if (y < 0) y = -y; + if (x < y) { + double tmp = x; + x = y; y = tmp; + } + if (y == 0.0) return x; + y /= x; + return x * sqrt(1.0+y*y); +} |