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17 lines
305 B
C
17 lines
305 B
C
/*
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* __isinf_nsl(x) returns != 0 if x is ±inf, else 0;
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* no branching!
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*/
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#include <math.h>
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#include <math_private.h>
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int
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__isinf_nsl (long double x)
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{
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int64_t hx,lx;
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GET_LDOUBLE_WORDS64(hx,lx,x);
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return !((lx & 0x7fffffffffffffffLL)
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| ((hx & 0x7fffffffffffffffLL) ^ 0x7ff0000000000000LL));
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}
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