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author | bde <bde@FreeBSD.org> | 2005-11-02 06:45:21 +0000 |
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committer | bde <bde@FreeBSD.org> | 2005-11-02 06:45:21 +0000 |
commit | 481c63491ce1b6f2a5252e58abf8b9db6264b607 (patch) | |
tree | 4fe60fd4ecbfa94df57c56fd406e58c8d8856aa2 /sys/alpha | |
parent | 5a81eebcee6e102fd8df655042b5b6d383bddc1c (diff) | |
download | FreeBSD-src-481c63491ce1b6f2a5252e58abf8b9db6264b607.zip FreeBSD-src-481c63491ce1b6f2a5252e58abf8b9db6264b607.tar.gz |
Removed dead code for handling tan[f]() on odd multiples of pi/2. This
case never occurs since pi/2 is irrational so no multiple of it can
be represented as a float and we have precise arg reduction so we never
end up with a remainder of 0 in the "kernel" function unless the
original arg is 0.
If this case occurs, then we would now fall through to general code
that returns +-Inf (depending on the sign of the reduced arg) instead
of forcing +Inf. The correct handling would be to return NaN since
we would have lost so much precision that the correct result can be
anything _except_ +-Inf.
Don't reindent the else clause left over from this, although it was already
bogusly indented ("if (foo) return; else ..." just marches the indentation
to the right), since it will be removed too.
Index: k_tan.c
===================================================================
RCS file: /home/ncvs/src/lib/msun/src/k_tan.c,v
retrieving revision 1.10
diff -r1.10 k_tan.c
88,90c88
< if (((ix | low) | (iy + 1)) == 0)
< return one / fabs(x);
< else {
---
> {
Diffstat (limited to 'sys/alpha')
0 files changed, 0 insertions, 0 deletions