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37 | inline int isFloat32SigNaN(float32 f) |
37 | inline int isFloat32SigNaN(float32 f) |
38 | { /* SigNaN : exp = 0xff mantisa = 1xxxxx..x (binary), where at least one x is nonzero */ |
38 | { /* SigNaN : exp = 0xff mantisa = 1xxxxx..x (binary), where at least one x is nonzero */ |
39 | return ((f.parts.exp==0xFF)&&(f.parts.mantisa>0x400000)); |
39 | return ((f.parts.exp==0xFF)&&(f.parts.mantisa>0x400000)); |
40 | }; |
40 | }; |
41 | 41 | ||
- | 42 | inline int isFloat32Infinity(float32 f) |
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- | 43 | { |
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- | 44 | return ((f.parts.exp==0xFF)&&(f.parts.mantisa==0x0)); |
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- | 45 | }; |
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- | 46 | ||
- | 47 | /** |
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- | 48 | * @return 1, if both floats are equal - but NaNs are not recognized |
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- | 49 | */ |
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- | 50 | inline int isFloat32eq(float32 a, float32 b) |
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- | 51 | { |
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- | 52 | return ((a==b)||(((a.binary| b.binary)&0x7FFFFFFF)==0)); /* a equals to b or both are zeros (with any sign) */ |
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- | 53 | } |
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- | 54 | ||
- | 55 | /** |
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- | 56 | * @return 1, if a>b - but NaNs are not recognized |
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- | 57 | */ |
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- | 58 | inline int isFloat32lt(float32 a, float32 b) |
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- | 59 | { |
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- | 60 | if (((a.binary| b.binary)&0x7FFFFFFF)==0) { |
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- | 61 | return 0; |
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- | 62 | }; |
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- | 63 | a.parts.sign^=a.parts.sign; |
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- | 64 | b.parts.sign^=b.parts.sign; |
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- | 65 | return (a.binary<b.binary); |
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- | 66 | ||
- | 67 | } |
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- | 68 | ||
- | 69 |