36 lines
676 B
C
36 lines
676 B
C
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/* @(#)z_ispos.c 1.0 98/08/13 */
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/******************************************************************
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* Numtest
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*
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* Input:
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* x - pointer to a floating point value
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*
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* Output:
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* An integer that indicates if the number is positive.
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*
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* Description:
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* This routine returns an integer that indicates if the number
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* passed in is positive (1) or negative (0).
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*
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*****************************************************************/
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#include "fdlibm.h"
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#include "zmath.h"
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#ifndef _DOUBLE_IS_32BITS
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int ispos (double x)
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{
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__uint32_t hx;
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GET_HIGH_WORD (hx, x);
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if (hx & 0x80000000)
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return (0);
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else
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return (1);
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}
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#endif /* _DOUBLE_IS_32BITS */
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