Last change
on this file since 577 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
676 bytes
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Line | |
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1 | |
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2 | /* @(#)z_ispos.c 1.0 98/08/13 */ |
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3 | /****************************************************************** |
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4 | * Numtest |
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5 | * |
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6 | * Input: |
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7 | * x - pointer to a floating point value |
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8 | * |
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9 | * Output: |
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10 | * An integer that indicates if the number is positive. |
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11 | * |
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12 | * Description: |
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13 | * This routine returns an integer that indicates if the number |
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14 | * passed in is positive (1) or negative (0). |
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15 | * |
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16 | *****************************************************************/ |
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17 | |
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18 | #include "fdlibm.h" |
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19 | #include "zmath.h" |
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20 | |
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21 | #ifndef _DOUBLE_IS_32BITS |
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22 | |
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23 | int ispos (double x) |
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24 | { |
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25 | __uint32_t hx; |
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26 | |
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27 | GET_HIGH_WORD (hx, x); |
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28 | |
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29 | if (hx & 0x80000000) |
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30 | return (0); |
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31 | else |
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32 | return (1); |
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33 | } |
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34 | |
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35 | #endif /* _DOUBLE_IS_32BITS */ |
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