diff options
Diffstat (limited to 'newlib/libm/common/sf_ilogb.c')
| -rw-r--r-- | newlib/libm/common/sf_ilogb.c | 53 |
1 files changed, 0 insertions, 53 deletions
diff --git a/newlib/libm/common/sf_ilogb.c b/newlib/libm/common/sf_ilogb.c deleted file mode 100644 index ee65594..0000000 --- a/newlib/libm/common/sf_ilogb.c +++ /dev/null @@ -1,53 +0,0 @@ -/* sf_ilogb.c -- float version of s_ilogb.c. - * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com. - */ - -/* - * ==================================================== - * 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. - * ==================================================== - */ - -#include "fdlibm.h" -#include <limits.h> - -#ifdef __STDC__ - int ilogbf(float x) -#else - int ilogbf(x) - float x; -#endif -{ - __int32_t hx,ix; - - GET_FLOAT_WORD(hx,x); - hx &= 0x7fffffff; - if(hx<0x00800000) { - if(hx==0) - return - INT_MAX; /* ilogb(0) = 0x80000001 */ - else /* subnormal x */ - for (ix = -126,hx<<=8; hx>0; hx<<=1) ix -=1; - return ix; - } - else if (hx<0x7f800000) return (hx>>23)-127; - else return INT_MAX; -} - -#ifdef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - int ilogb(double x) -#else - int ilogb(x) - double x; -#endif -{ - return ilogbf((float) x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |