summaryrefslogtreecommitdiff
path: root/native/fdlibm/w_remainder.c
diff options
context:
space:
mode:
Diffstat (limited to 'native/fdlibm/w_remainder.c')
-rw-r--r--native/fdlibm/w_remainder.c119
1 files changed, 119 insertions, 0 deletions
diff --git a/native/fdlibm/w_remainder.c b/native/fdlibm/w_remainder.c
new file mode 100644
index 000000000..a06be0e7b
--- /dev/null
+++ b/native/fdlibm/w_remainder.c
@@ -0,0 +1,119 @@
+
+/* @(#)w_remainder.c 5.1 93/09/24 */
+/*
+ * ====================================================
+ * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
+ *
+ * Developed at SunPro, a Sun Microsystems, Inc. business.
+ * Permission to use, copy, modify, and distribute this
+ * software is freely granted, provided that this notice
+ * is preserved.
+ * ====================================================
+ */
+
+/*
+FUNCTION
+<<rint>>, <<rintf>>, <<remainder>>, <<remainderf>>---round and remainder
+INDEX
+ rint
+INDEX
+ rintf
+INDEX
+ remainder
+INDEX
+ remainderf
+
+ANSI_SYNOPSIS
+ #include <math.h>
+ double rint(double <[x]>);
+ float rintf(float <[x]>);
+ double remainder(double <[x]>, double <[y]>);
+ float remainderf(float <[x]>, float <[y]>);
+
+TRAD_SYNOPSIS
+ #include <math.h>
+ double rint(<[x]>)
+ double <[x]>;
+ float rintf(<[x]>)
+ float <[x]>;
+ double remainder(<[x]>,<[y]>)
+ double <[x]>, <[y]>;
+ float remainderf(<[x]>,<[y]>)
+ float <[x]>, <[y]>;
+
+DESCRIPTION
+<<rint>> and <<rintf>> returns their argument rounded to the nearest
+integer. <<remainder>> and <<remainderf>> find the remainder of
+<[x]>/<[y]>; this value is in the range -<[y]>/2 .. +<[y]>/2.
+
+RETURNS
+<<rint>> and <<remainder>> return the integer result as a double.
+
+PORTABILITY
+<<rint>> and <<remainder>> are System V release 4. <<rintf>> and
+<<remainderf>> are extensions.
+
+*/
+
+/*
+ * wrapper remainder(x,p)
+ */
+
+#include "fdlibm.h"
+#include <errno.h>
+
+#ifndef _DOUBLE_IS_32BITS
+
+#ifdef __STDC__
+ double remainder(double x, double y) /* wrapper remainder */
+#else
+ double remainder(x,y) /* wrapper remainder */
+ double x,y;
+#endif
+{
+#ifdef _IEEE_LIBM
+ return __ieee754_remainder(x,y);
+#else
+ double z;
+ struct exception exc;
+ z = __ieee754_remainder(x,y);
+ if(_LIB_VERSION == _IEEE_ || isnan(y)) return z;
+ if(y==0.0) {
+ /* remainder(x,0) */
+ exc.type = DOMAIN;
+ exc.name = "remainder";
+ exc.err = 0;
+ exc.arg1 = x;
+ exc.arg2 = y;
+ exc.retval = 0.0/0.0;
+ if (_LIB_VERSION == _POSIX_)
+ errno = EDOM;
+ else if (!matherr(&exc)) {
+ errno = EDOM;
+ }
+ if (exc.err != 0)
+ errno = exc.err;
+ return exc.retval;
+ } else
+ return z;
+#endif
+}
+
+#endif /* defined(_DOUBLE_IS_32BITS) */
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+