diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_ceil.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_ceil.c | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_ceil.c b/sysdeps/ieee754/dbl-64/s_ceil.c deleted file mode 100644 index c291c26f57..0000000000 --- a/sysdeps/ieee754/dbl-64/s_ceil.c +++ /dev/null @@ -1,89 +0,0 @@ -/* @(#)s_ceil.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. - * ==================================================== - */ - -/* - * ceil(x) - * Return x rounded toward -inf to integral value - * Method: - * Bit twiddling. - */ - -#include <math.h> -#include <math_private.h> - -double -__ceil (double x) -{ - int32_t i0, i1, j0; - u_int32_t i, j; - EXTRACT_WORDS (i0, i1, x); - j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; - if (j0 < 20) - { - if (j0 < 0) - { - /* return 0*sign(x) if |x|<1 */ - if (i0 < 0) - { - i0 = 0x80000000; i1 = 0; - } - else if ((i0 | i1) != 0) - { - i0 = 0x3ff00000; i1 = 0; - } - } - else - { - i = (0x000fffff) >> j0; - if (((i0 & i) | i1) == 0) - return x; /* x is integral */ - if (i0 > 0) - i0 += (0x00100000) >> j0; - i0 &= (~i); i1 = 0; - } - } - else if (j0 > 51) - { - if (j0 == 0x400) - return x + x; /* inf or NaN */ - else - return x; /* x is integral */ - } - else - { - i = ((u_int32_t) (0xffffffff)) >> (j0 - 20); - if ((i1 & i) == 0) - return x; /* x is integral */ - if (i0 > 0) - { - if (j0 == 20) - i0 += 1; - else - { - j = i1 + (1 << (52 - j0)); - if (j < i1) - i0 += 1; /* got a carry */ - i1 = j; - } - } - i1 &= (~i); - } - INSERT_WORDS (x, i0, i1); - return x; -} -#ifndef __ceil -weak_alias (__ceil, ceil) -# ifdef NO_LONG_DOUBLE -strong_alias (__ceil, __ceill) -weak_alias (__ceil, ceill) -# endif -#endif |