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| author | nsz <nsz@port70.net> | 2012-05-08 00:22:56 +0200 |
|---|---|---|
| committer | nsz <nsz@port70.net> | 2012-05-08 00:22:56 +0200 |
| commit | 3738a96e052603403e085e9a1024289ba3e09188 (patch) | |
| tree | fb183fb5fc9f79797bd38f87aa7f51261ef9da44 /src/math/remquol.c | |
| parent | 0e195dfaa4902a73179f7ab296d47f01d3518ad3 (diff) | |
| download | musl-3738a96e052603403e085e9a1024289ba3e09188.tar.gz | |
math: fix remquo.c when x==-y and a subnormal remainder bug as well
backported fix from freebsd:
http://svnweb.FreeBSD.org/base?view=revision&revision=233973
Diffstat (limited to 'src/math/remquol.c')
| -rw-r--r-- | src/math/remquol.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/src/math/remquol.c b/src/math/remquol.c index 721231b4..a2e11728 100644 --- a/src/math/remquol.c +++ b/src/math/remquol.c @@ -94,7 +94,7 @@ long double remquol(long double x, long double y, int *quo) goto fixup; /* |x|<|y| return x or x-y */ } if (ux.bits.manh == uy.bits.manh && ux.bits.manl == uy.bits.manl) { - *quo = 1; + *quo = sxy ? -1 : 1; return Zero[sx]; /* |x|=|y| return x*0*/ } } @@ -152,6 +152,7 @@ long double remquol(long double x, long double y, int *quo) /* convert back to floating value and restore the sign */ if ((hx|lx) == 0) { /* return sign(x)*0 */ + q &= 0x7fffffff; *quo = sxy ? -q : q; return Zero[sx]; } |