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gcc.gnu.org Git - gcc.git/blob - libjava/java/lang/sf_rint.c
1 /* sf_rint.c -- float version of s_rint.c.
2 * Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
13 * ====================================================
24 8.3886080000e+06, /* 0x4b000000 */
25 -8.3886080000e+06, /* 0xcb000000 */
40 j0
= ((i0
>>23)&0xff)-0x7f;
43 if((i0
&0x7fffffff)==0) return x
;
46 i0
|= ((i1
|-i1
)>>9)&0x400000;
51 SET_FLOAT_WORD(t
,(i0
&0x7fffffff)|(sx
<<31));
55 if((i0
&i
)==0) return x
; /* x is integral */
57 if((i0
&i
)!=0) i0
= (i0
&(~i
))|((0x100000)>>j0
);
60 if(j0
==0x80) return x
+x
; /* inf or NaN */
61 else return x
; /* x is integral */
68 #ifdef _DOUBLE_IS_32BITS
77 return (double) rintf((float) x
);
80 #endif /* defined(_DOUBLE_IS_32BITS) */
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