Subversion Repositories HelenOS-historic

Rev

Rev 734 | Rev 1657 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 734 Rev 804
Line 28... Line 28...
28 
 
 28 
 
29 
#include<sftypes.h>
 29 
#include<sftypes.h>
30 
#include<comparison.h>
 30 
#include<comparison.h>
31 
 
 31 
 
32 
inline int isFloat32NaN(float32 f)
 32 
inline int isFloat32NaN(float32 f)
33 
{   /* NaN : exp = 0xff and nonzero mantisa */
 33 
{   /* NaN : exp = 0xff and nonzero fraction */
34 
    return ((f.parts.exp==0xFF)&&(f.parts.mantisa));
 34 
    return ((f.parts.exp==0xFF)&&(f.parts.fraction));
35 
};
 35 
};
36 
 
 36 
 
37 
inline int isFloat64NaN(float64 d)
 37 
inline int isFloat64NaN(float64 d)
38 
{   /* NaN : exp = 0x7ff and nonzero mantisa */
 38 
{   /* NaN : exp = 0x7ff and nonzero fraction */
39 
    return ((d.parts.exp==0x7FF)&&(d.parts.mantisa));
 39 
    return ((d.parts.exp==0x7FF)&&(d.parts.fraction));
40 
};
 40 
};
41 
 
 41 
 
42 
inline int isFloat32SigNaN(float32 f)
 42 
inline int isFloat32SigNaN(float32 f)
43 
{   /* SigNaN : exp = 0xff mantisa = 0xxxxx..x (binary), where at least one x is nonzero */
 43 
{   /* SigNaN : exp = 0xff fraction = 0xxxxx..x (binary), where at least one x is nonzero */
44 
    return ((f.parts.exp==0xFF)&&(f.parts.mantisa<0x400000)&&(f.parts.mantisa));
 44 
    return ((f.parts.exp==0xFF)&&(f.parts.fraction<0x400000)&&(f.parts.fraction));
45 
};
 45 
};
46 
 
 46 
 
47 
inline int isFloat64SigNaN(float64 d)
 47 
inline int isFloat64SigNaN(float64 d)
48 
{   /* SigNaN : exp = 0x7ff mantisa = 0xxxxx..x (binary), where at least one x is nonzero */
 48 
{   /* SigNaN : exp = 0x7ff fraction = 0xxxxx..x (binary), where at least one x is nonzero */
49 
    return ((d.parts.exp==0x7FF)&&(d.parts.mantisa)&&(d.parts.mantisa<0x8000000000000ll));
 49 
    return ((d.parts.exp==0x7FF)&&(d.parts.fraction)&&(d.parts.fraction<0x8000000000000ll));
50 
};
 50 
};
51 
 
 51 
 
52 
inline int isFloat32Infinity(float32 f)
 52 
inline int isFloat32Infinity(float32 f)
53 
{
 53 
{
54 
    return ((f.parts.exp==0xFF)&&(f.parts.mantisa==0x0));
 54 
    return ((f.parts.exp==0xFF)&&(f.parts.fraction==0x0));
55 
};
 55 
};
56 
 
 56 
 
57 
inline int isFloat64Infinity(float64 d)
 57 
inline int isFloat64Infinity(float64 d)
58 
{
 58 
{
59 
    return ((d.parts.exp==0x7FF)&&(d.parts.mantisa==0x0));
 59 
    return ((d.parts.exp==0x7FF)&&(d.parts.fraction==0x0));
60 
};
 60 
};
61 
 
 61 
 
62 
inline int isFloat32Zero(float32 f)
 62 
inline int isFloat32Zero(float32 f)
63 
{
 63 
{
64 
    return (((f.binary) & 0x7FFFFFFF) == 0);
 64 
    return (((f.binary) & 0x7FFFFFFF) == 0);