Last change
on this file since 413 was 398, checked in by coas-nagasima, 5 years ago |
mbedTLS版Azure IoT Hub接続サンプルのソースコードを追加
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Property svn:eol-style
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Property svn:mime-type
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File size:
525 bytes
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1 | #include "libm.h"
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2 |
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3 | #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024
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4 | long double frexpl(long double x, int *e)
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5 | {
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6 | return frexp(x, e);
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7 | }
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8 | #elif (LDBL_MANT_DIG == 64 || LDBL_MANT_DIG == 113) && LDBL_MAX_EXP == 16384
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9 | long double frexpl(long double x, int *e)
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10 | {
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11 | union ldshape u = {x};
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12 | int ee = u.i.se & 0x7fff;
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13 |
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14 | if (!ee) {
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15 | if (x) {
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16 | x = frexpl(x*0x1p120, e);
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17 | *e -= 120;
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18 | } else *e = 0;
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19 | return x;
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20 | } else if (ee == 0x7fff) {
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21 | return x;
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22 | }
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23 |
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24 | *e = ee - 0x3ffe;
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25 | u.i.se &= 0x8000;
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26 | u.i.se |= 0x3ffe;
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27 | return u.f;
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28 | }
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29 | #endif
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