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e48682cff5
* Makefile.am (MATHOBJS_IN_LIBC): Add s_isinfd, sf_isinff,
s_isnand, and sf_isnanf object files.
* Makefile.in: Regenerated.
* libc/include/ieeefp.h: Undef isnan and isinf to avoid
conflict if <math.h> has previously been included.
* libc/include/math.h
* libm/common/Makefile.am: Add new s_isinfd, s_isnand, sf_isinff,
and sf_isnanf files. Also support s_isnan, sf_isnan, s_isinf, and
sf_isinf files which have been moved from math/mathfp directories.
* libm/common/Makefile.in: Regenerated.
* libm/common/s_isinfd.c: New file.
* libm/common/s_isnand.c: Ditto.
* libm/common/sf_isinff.c: Ditto.
* libm/common/sf_isnanf.c: Ditto.
* libm/common/s_isinf.c: Moved from libm/math directory.
* libm/common/s_isnan.c: Ditto.
* libm/common/sf_isinf.c: Ditto.
* libm/common/sf_isnan.c: Ditto.
* libm/math/Makefile.am: Remove isinf and isnan family functions
which have been moved into common directory.
* libm/mathfp/Makefile.am: Ditto.
* libm/math/Makefile.in: Regenerated.
* libm/mathfp/Makefile.in: Ditto.
* libm/math/s_isinf.c: Removed.
* libm/math/s_isnan.c: Ditto.
* libm/math/sf_isinf.c: Ditto.
* libm/math/sf_isnan.c: Ditto.
* libm/mathfp/s_isinf.c: Ditto.
* libm/mathfp/s_isnan.c: Ditto.
* libm/mathfp/sf_isinf.c: Ditto.
* libm/mathfp/sf_isnan.c: Ditto.
24 lines
394 B
C
24 lines
394 B
C
/*
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* __isinfd(x) returns 1 if x is infinity, else 0;
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* no branching!
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* Added by Cygnus Support.
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*/
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#include "fdlibm.h"
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#ifndef _DOUBLE_IS_32BITS
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int
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_DEFUN (__isinfd, (x),
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double x)
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{
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__int32_t hx,lx;
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EXTRACT_WORDS(hx,lx,x);
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hx &= 0x7fffffff;
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hx |= (__uint32_t)(lx|(-lx))>>31;
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hx = 0x7ff00000 - hx;
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return 1 - (int)((__uint32_t)(hx|(-hx))>>31);
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}
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#endif /* _DOUBLE_IS_32BITS */
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