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Diffstat (limited to 'newlib/libm/common/s_isinf.c')
-rw-r--r-- | newlib/libm/common/s_isinf.c | 29 |
1 files changed, 0 insertions, 29 deletions
diff --git a/newlib/libm/common/s_isinf.c b/newlib/libm/common/s_isinf.c deleted file mode 100644 index db8e8f82b..000000000 --- a/newlib/libm/common/s_isinf.c +++ /dev/null @@ -1,29 +0,0 @@ -/* - * isinf(x) returns 1 if x is infinity, else 0; - * no branching! - * - * isinf is a <math.h> macro in the C99 standard. It was previously - * implemented as a function by newlib and is 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> - -#ifndef _DOUBLE_IS_32BITS - -int -_DEFUN (isinf, (x), - double x) -{ - __int32_t hx,lx; - EXTRACT_WORDS(hx,lx,x); - hx &= 0x7fffffff; - hx |= (__uint32_t)(lx|(-lx))>>31; - hx = 0x7ff00000 - hx; - return 1 - (int)((__uint32_t)(hx|(-hx))>>31); -} - -#endif /* _DOUBLE_IS_32BITS */ |