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| 4349 | Serge | 1 | /* |
| 2 | * ==================================================== |
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| 3 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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| 4 | * |
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| 5 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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| 6 | * Permission to use, copy, modify, and distribute this |
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| 7 | * software is freely granted, provided that this notice |
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| 8 | * is preserved. |
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| 9 | * ==================================================== |
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| 10 | */ |
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| 11 | /* |
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| 12 | FUNCTION |
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| 13 | < |
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| 14 | INDEX |
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| 15 | nearbyint |
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| 16 | INDEX |
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| 17 | nearbyintf |
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| 18 | |||
| 19 | ANSI_SYNOPSIS |
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| 20 | #include |
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| 21 | double nearbyint(double <[x]>); |
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| 22 | float nearbyintf(float <[x]>); |
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| 23 | |||
| 24 | DESCRIPTION |
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| 25 | The < |
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| 26 | floating-point format, using the current rounding direction and |
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| 27 | (supposedly) without raising the "inexact" floating-point exception. |
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| 28 | See the < |
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| 29 | floating-point exception being raised when appropriate. |
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| 30 | |||
| 31 | BUGS |
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| 32 | Newlib does not support the floating-point exception model, so that |
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| 33 | the floating-point exception control is not present and thereby what may |
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| 34 | be seen will be compiler and hardware dependent in this regard. |
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| 35 | The Newlib < |
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| 36 | functions with respect to the floating-point exception behavior, and |
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| 37 | will cause the "inexact" exception to be raised for most targets. |
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| 38 | |||
| 39 | RETURNS |
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| 40 | <[x]> rounded to an integral value, using the current rounding direction. |
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| 41 | |||
| 42 | PORTABILITY |
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| 43 | ANSI C, POSIX |
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| 44 | |||
| 45 | SEEALSO |
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| 46 | < |
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| 47 | */ |
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| 48 | |||
| 49 | #include |
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| 50 | #include "fdlibm.h" |
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| 51 | |||
| 52 | #ifndef _DOUBLE_IS_32BITS |
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| 53 | |||
| 54 | #ifdef __STDC__ |
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| 55 | double nearbyint(double x) |
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| 56 | #else |
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| 57 | double nearbyint(x) |
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| 58 | double x; |
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| 59 | #endif |
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| 60 | { |
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| 61 | return rint(x); |
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| 62 | } |
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| 63 | |||
| 64 | #endif /* _DOUBLE_IS_32BITS */ |