Last change
on this file was 444, checked in by coas-nagasima, 4 years ago |
muslのソースコードを追加
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File size:
256 bytes
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[444] | 1 | #include <math.h>
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| 2 | #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
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| 3 | long double logbl(long double x)
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| 4 | {
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| 5 | return logb(x);
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| 6 | }
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| 7 | #else
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| 8 | long double logbl(long double x)
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| 9 | {
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| 10 | if (!isfinite(x))
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| 11 | return x * x;
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| 12 | if (x == 0)
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| 13 | return -1/(x*x);
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| 14 | return ilogbl(x);
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| 15 | }
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| 16 | #endif
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