URL https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libm/] [math/] [wf_jn.c] - Blame information for rev 252

Go to most recent revision | Details | Compare with Previous | View Log


/* wf_jn.c -- float version of w_jn.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 <errno.h>
 
 
#ifdef __STDC__
        float jnf(int n, float x)       /* wrapper jnf */
#else
        float jnf(n,x)                  /* wrapper jnf */
        float x; int n;
#endif
{
#ifdef _IEEE_LIBM
        return __ieee754_jnf(n,x);
#else
        float z;
        struct exception exc;
        z = __ieee754_jnf(n,x);
        if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
        if(fabsf(x)>(float)X_TLOSS) {
            /* jnf(|x|>X_TLOSS) */
            exc.type = TLOSS;
            exc.name = "jnf";
            exc.err = 0;
            exc.arg1 = (double)n;
            exc.arg2 = (double)x;
            exc.retval = 0.0;
            if (_LIB_VERSION == _POSIX_)
                errno = ERANGE;
            else if (!matherr(&exc)) {
               errno = ERANGE;
            }
            if (exc.err != 0)
               errno = exc.err;
            return exc.retval;
        } else
            return z;
#endif
}
 
#ifdef __STDC__
        float ynf(int n, float x)       /* wrapper ynf */
#else
        float ynf(n,x)                  /* wrapper ynf */
        float x; int n;
#endif
{
#ifdef _IEEE_LIBM
        return __ieee754_ynf(n,x);
#else
        float z;
        struct exception exc;
        z = __ieee754_ynf(n,x);
        if(_LIB_VERSION == _IEEE_ || isnan(x) ) return z;
        if(x <= (float)0.0){
            /* ynf(n,0) = -inf or ynf(x<0) = NaN */
#ifndef HUGE_VAL 
#define HUGE_VAL inf
            double inf = 0.0;
 
            SET_HIGH_WORD(inf,0x7ff00000);      /* set inf to infinite */
#endif
            exc.type = DOMAIN;  /* should be SING for IEEE */
            exc.name = "ynf";
            exc.err = 0;
            exc.arg1 = (double)n;
            exc.arg2 = (double)x;
            if (_LIB_VERSION == _SVID_)
                exc.retval = -HUGE;
            else
                exc.retval = -HUGE_VAL;
            if (_LIB_VERSION == _POSIX_)
                errno = EDOM;
            else if (!matherr(&exc)) {
                errno = EDOM;
            }
            if (exc.err != 0)
               errno = exc.err;
            return (float)exc.retval;
        }
        if(x>(float)X_TLOSS) {
            /* ynf(x>X_TLOSS) */
            exc.type = TLOSS;
            exc.name = "ynf";
            exc.err = 0;
            exc.arg1 = (double)n;
            exc.arg2 = (double)x;
            exc.retval = 0.0;
            if (_LIB_VERSION == _POSIX_)
                errno = ERANGE;
            else if (!matherr(&exc)) {
                errno = ERANGE;
            }
            if (exc.err != 0)
               errno = exc.err;
            return (float)exc.retval;
        } else
            return z;
#endif
}
 
#ifdef _DOUBLE_IS_32BITS
 
#ifdef __STDC__
        double jn(int n, double x)
#else
        double jn(n,x)
        double x; int n;
#endif
{
        return (double) jnf(n, (float) x);
}
 
#ifdef __STDC__
        double yn(int n, double x)
#else
        double yn(n,x)
        double x; int n;
#endif
{
        return (double) ynf(n, (float) x);
}
 
#endif /* defined(_DOUBLE_IS_32BITS) */

Line No.	Rev	Author	Line
1	207	jeremybenn	`/* wf_jn.c -- float version of w_jn.c.`
2			`* Conversion to float by Ian Lance Taylor, Cygnus Support, ian@cygnus.com.`
3			`*/`
4
5			`/*`
6			`* ====================================================`
7			`* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.`
8			`*`
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`
12			`* is preserved.`
13			`* ====================================================`
14			`*/`
15
16			`#include "fdlibm.h"`
17			`#include <errno.h>`
18
19
20			`#ifdef __STDC__`
21			`float jnf(int n, float x) /* wrapper jnf */`
22			`#else`
23			`float jnf(n,x) /* wrapper jnf */`
24			`float x; int n;`
25			`#endif`
26			`{`
27			`#ifdef _IEEE_LIBM`
28			`return __ieee754_jnf(n,x);`
29			`#else`
30			`float z;`
31			`struct exception exc;`
32			`z = __ieee754_jnf(n,x);`
33			`if(_LIB_VERSION == _IEEE_ \|\| isnan(x) ) return z;`
34			`if(fabsf(x)>(float)X_TLOSS) {`
35			`/* jnf(\|x\|>X_TLOSS) */`
36			`exc.type = TLOSS;`
37			`exc.name = "jnf";`
38			`exc.err = 0;`
39			`exc.arg1 = (double)n;`
40			`exc.arg2 = (double)x;`
41			`exc.retval = 0.0;`
42			`if (_LIB_VERSION == _POSIX_)`
43			`errno = ERANGE;`
44			`else if (!matherr(&exc)) {`
45			`errno = ERANGE;`
46			`}`
47			`if (exc.err != 0)`
48			`errno = exc.err;`
49			`return exc.retval;`
50			`} else`
51			`return z;`
52			`#endif`
53			`}`
54
55			`#ifdef __STDC__`
56			`float ynf(int n, float x) /* wrapper ynf */`
57			`#else`
58			`float ynf(n,x) /* wrapper ynf */`
59			`float x; int n;`
60			`#endif`
61			`{`
62			`#ifdef _IEEE_LIBM`
63			`return __ieee754_ynf(n,x);`
64			`#else`
65			`float z;`
66			`struct exception exc;`
67			`z = __ieee754_ynf(n,x);`
68			`if(_LIB_VERSION == _IEEE_ \|\| isnan(x) ) return z;`
69			`if(x <= (float)0.0){`
70			`/* ynf(n,0) = -inf or ynf(x<0) = NaN */`
71			`#ifndef HUGE_VAL`
72			`#define HUGE_VAL inf`
73			`double inf = 0.0;`
74
75			`SET_HIGH_WORD(inf,0x7ff00000); /* set inf to infinite */`
76			`#endif`
77			`exc.type = DOMAIN; /* should be SING for IEEE */`
78			`exc.name = "ynf";`
79			`exc.err = 0;`
80			`exc.arg1 = (double)n;`
81			`exc.arg2 = (double)x;`
82			`if (_LIB_VERSION == _SVID_)`
83			`exc.retval = -HUGE;`
84			`else`
85			`exc.retval = -HUGE_VAL;`
86			`if (_LIB_VERSION == _POSIX_)`
87			`errno = EDOM;`
88			`else if (!matherr(&exc)) {`
89			`errno = EDOM;`
90			`}`
91			`if (exc.err != 0)`
92			`errno = exc.err;`
93			`return (float)exc.retval;`
94			`}`
95			`if(x>(float)X_TLOSS) {`
96			`/* ynf(x>X_TLOSS) */`
97			`exc.type = TLOSS;`
98			`exc.name = "ynf";`
99			`exc.err = 0;`
100			`exc.arg1 = (double)n;`
101			`exc.arg2 = (double)x;`
102			`exc.retval = 0.0;`
103			`if (_LIB_VERSION == _POSIX_)`
104			`errno = ERANGE;`
105			`else if (!matherr(&exc)) {`
106			`errno = ERANGE;`
107			`}`
108			`if (exc.err != 0)`
109			`errno = exc.err;`
110			`return (float)exc.retval;`
111			`} else`
112			`return z;`
113			`#endif`
114			`}`
115
116			`#ifdef _DOUBLE_IS_32BITS`
117
118			`#ifdef __STDC__`
119			`double jn(int n, double x)`
120			`#else`
121			`double jn(n,x)`
122			`double x; int n;`
123			`#endif`
124			`{`
125			`return (double) jnf(n, (float) x);`
126			`}`
127
128			`#ifdef __STDC__`
129			`double yn(int n, double x)`
130			`#else`
131			`double yn(n,x)`
132			`double x; int n;`
133			`#endif`
134			`{`
135			`return (double) ynf(n, (float) x);`
136			`}`
137
138			`#endif /* defined(_DOUBLE_IS_32BITS) */`

Browse

Tools

Subversion Repositories openrisc_2011-10-31

[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libm/] [math/] [wf_jn.c] - Blame information for rev 252