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Diffstat (limited to '3rdparty/SDL2/src/libm/s_scalbn.c')
-rw-r--r--3rdparty/SDL2/src/libm/s_scalbn.c79
1 files changed, 0 insertions, 79 deletions
diff --git a/3rdparty/SDL2/src/libm/s_scalbn.c b/3rdparty/SDL2/src/libm/s_scalbn.c
deleted file mode 100644
index f824e926d70..00000000000
--- a/3rdparty/SDL2/src/libm/s_scalbn.c
+++ /dev/null
@@ -1,79 +0,0 @@
-/* @(#)s_scalbn.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.
- * ====================================================
- */
-
-#if defined(LIBM_SCCS) && !defined(lint)
-static const char rcsid[] =
- "$NetBSD: s_scalbn.c,v 1.8 1995/05/10 20:48:08 jtc Exp $";
-#endif
-
-/*
- * 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_libm.h"
-#include "math_private.h"
-
-libm_hidden_proto(copysign)
-#ifdef __STDC__
- static const double
-#else
- static double
-#endif
- two54 = 1.80143985094819840000e+16, /* 0x43500000, 0x00000000 */
- twom54 = 5.55111512312578270212e-17, /* 0x3C900000, 0x00000000 */
- huge_val = 1.0e+300, tiny = 1.0e-300;
-
-libm_hidden_proto(scalbn)
-#ifdef __STDC__
- double scalbn(double x, int n)
-#else
- double scalbn(x, n)
- double x;
- int n;
-#endif
-{
- int32_t k, hx, lx;
- EXTRACT_WORDS(hx, lx, x);
- k = (hx & 0x7ff00000) >> 20; /* extract exponent */
- if (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 (n < -50000)
- return tiny * x; /* underflow */
- }
- if (k == 0x7ff)
- return x + x; /* NaN or Inf */
- k = k + n;
- if (k > 0x7fe)
- return huge_val * copysign(huge_val, x); /* overflow */
- if (k > 0) { /* normal result */
- SET_HIGH_WORD(x, (hx & 0x800fffff) | (k << 20));
- return x;
- }
- if (k <= -54) {
- if (n > 50000) /* in case integer overflow in n+k */
- return huge_val * copysign(huge_val, x); /* overflow */
- else
- return tiny * copysign(tiny, x); /* underflow */
- }
- k += 54; /* subnormal result */
- SET_HIGH_WORD(x, (hx & 0x800fffff) | (k << 20));
- return x * twom54;
-}
-
-libm_hidden_def(scalbn)