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https://opencores.org/ocsvn/openrisc_2011-10-31/openrisc_2011-10-31/trunk
Subversion Repositories openrisc_2011-10-31
[/] [openrisc/] [tags/] [gnu-src/] [newlib-1.18.0/] [newlib-1.18.0-or32-1.0rc2/] [newlib/] [libm/] [common/] [sf_isinf.c] - Rev 207
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/* * isinff(x) returns 1 if x is +-infinity, else 0; * * isinf is a <math.h> macro in the C99 standard. It was previously * implemented as isinf and isinff functions by newlib and are still declared * as such in <ieeefp.h>. Newlib supplies it here as a function if the user * chooses to use <ieeefp.h> or needs to link older code compiled with the * previous <math.h> declaration. */ #include "fdlibm.h" #include <ieeefp.h> #undef isinff int _DEFUN (isinff, (x), float x) { __int32_t ix; GET_FLOAT_WORD(ix,x); ix &= 0x7fffffff; return FLT_UWORD_IS_INFINITE(ix); } #ifdef _DOUBLE_IS_32BITS #undef isinf int _DEFUN (isinf, (x), double x) { return isinff((float) x); } #endif /* defined(_DOUBLE_IS_32BITS) */
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