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-rw-r--r--sysdeps/ieee754/dbl-64/s_scalbn.c63
1 files changed, 0 insertions, 63 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_scalbn.c b/sysdeps/ieee754/dbl-64/s_scalbn.c
deleted file mode 100644
index 58c7e1b33a..0000000000
--- a/sysdeps/ieee754/dbl-64/s_scalbn.c
+++ /dev/null
@@ -1,63 +0,0 @@
-/*
- * ====================================================
- * 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.
- * ====================================================
- */
-
-/*
- * scalbn (double x, int n)
- * scalbn(x,n) returns x* 2**n computed by exponent
- * manipulation rather than by actually performing an
- * exponentiation or a multiplication.
- */
-
-#include <math.h>
-#include <math_private.h>
-
-static const double
- two54 = 1.80143985094819840000e+16, /* 0x43500000, 0x00000000 */
- twom54 = 5.55111512312578270212e-17, /* 0x3C900000, 0x00000000 */
- huge = 1.0e+300,
- tiny = 1.0e-300;
-
-double
-__scalbn (double x, int n)
-{
- int32_t k, hx, lx;
- EXTRACT_WORDS (hx, lx, x);
- k = (hx & 0x7ff00000) >> 20; /* extract exponent */
- if (__glibc_unlikely (k == 0)) /* 0 or subnormal x */
- {
- if ((lx | (hx & 0x7fffffff)) == 0)
- return x; /* +-0 */
- x *= two54;
- GET_HIGH_WORD (hx, x);
- k = ((hx & 0x7ff00000) >> 20) - 54;
- }
- if (__glibc_unlikely (k == 0x7ff))
- return x + x; /* NaN or Inf */
- if (__glibc_unlikely (n < -50000))
- return tiny * __copysign (tiny, x); /*underflow*/
- if (__glibc_unlikely (n > 50000 || k + n > 0x7fe))
- return huge * __copysign (huge, x); /* overflow */
- /* Now k and n are bounded we know that k = k+n does not
- overflow. */
- k = k + n;
- if (__glibc_likely (k > 0)) /* normal result */
- {
- SET_HIGH_WORD (x, (hx & 0x800fffff) | (k << 20)); return x;
- }
- if (k <= -54)
- return tiny * __copysign (tiny, x); /*underflow*/
- k += 54; /* subnormal result */
- SET_HIGH_WORD (x, (hx & 0x800fffff) | (k << 20));
- return x * twom54;
-}
-#ifdef NO_LONG_DOUBLE
-strong_alias (__scalbn, __scalbnl)
-#endif