diff options
Diffstat (limited to 'sysdeps/ieee754/dbl-64/s_modf.c')
| -rw-r--r-- | sysdeps/ieee754/dbl-64/s_modf.c | 86 |
1 files changed, 0 insertions, 86 deletions
diff --git a/sysdeps/ieee754/dbl-64/s_modf.c b/sysdeps/ieee754/dbl-64/s_modf.c deleted file mode 100644 index 0a1e13008f..0000000000 --- a/sysdeps/ieee754/dbl-64/s_modf.c +++ /dev/null @@ -1,86 +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. - * ==================================================== - */ - -/* - * modf(double x, double *iptr) - * return fraction part of x, and return x's integral part in *iptr. - * Method: - * Bit twiddling. - * - * Exception: - * No exception. - */ - -#include <math.h> -#include <math_private.h> - -static const double one = 1.0; - -double -__modf (double x, double *iptr) -{ - int32_t i0, i1, j0; - u_int32_t i; - EXTRACT_WORDS (i0, i1, x); - j0 = ((i0 >> 20) & 0x7ff) - 0x3ff; /* exponent of x */ - if (j0 < 20) /* integer part in high x */ - { - if (j0 < 0) /* |x|<1 */ - { - INSERT_WORDS (*iptr, i0 & 0x80000000, 0); /* *iptr = +-0 */ - return x; - } - else - { - i = (0x000fffff) >> j0; - if (((i0 & i) | i1) == 0) /* x is integral */ - { - *iptr = x; - INSERT_WORDS (x, i0 & 0x80000000, 0); /* return +-0 */ - return x; - } - else - { - INSERT_WORDS (*iptr, i0 & (~i), 0); - return x - *iptr; - } - } - } - else if (__glibc_unlikely (j0 > 51)) /* no fraction part */ - { - *iptr = x * one; - /* We must handle NaNs separately. */ - if (j0 == 0x400 && ((i0 & 0xfffff) | i1)) - return x * one; - INSERT_WORDS (x, i0 & 0x80000000, 0); /* return +-0 */ - return x; - } - else /* fraction part in low x */ - { - i = ((u_int32_t) (0xffffffff)) >> (j0 - 20); - if ((i1 & i) == 0) /* x is integral */ - { - *iptr = x; - INSERT_WORDS (x, i0 & 0x80000000, 0); /* return +-0 */ - return x; - } - else - { - INSERT_WORDS (*iptr, i0, i1 & (~i)); - return x - *iptr; - } - } -} -weak_alias (__modf, modf) -#ifdef NO_LONG_DOUBLE -strong_alias (__modf, __modfl) -weak_alias (__modf, modfl) -#endif |