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Diffstat (limited to 'newlib/libm/mathfp/s_ldexp.c')
-rw-r--r--newlib/libm/mathfp/s_ldexp.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/newlib/libm/mathfp/s_ldexp.c b/newlib/libm/mathfp/s_ldexp.c
deleted file mode 100644
index 5ce2710ac..000000000
--- a/newlib/libm/mathfp/s_ldexp.c
+++ /dev/null
@@ -1,125 +0,0 @@
-
-/* @(#)z_ldexp.c 1.0 98/08/13 */
-
-/*
-FUNCTION
- <<ldexp>>, <<ldexpf>>---load exponent
-
-INDEX
- ldexp
-INDEX
- ldexpf
-
-ANSI_SYNOPSIS
- #include <math.h>
- double ldexp(double <[val]>, int <[exp]>);
- float ldexpf(float <[val]>, int <[exp]>);
-
-TRAD_SYNOPSIS
- #include <math.h>
-
- double ldexp(<[val]>, <[exp]>)
- double <[val]>;
- int <[exp]>;
-
- float ldexpf(<[val]>, <[exp]>)
- float <[val]>;
- int <[exp]>;
-
-DESCRIPTION
-<<ldexp>> calculates the value
-@ifnottex
-<[val]> times 2 to the power <[exp]>.
-@end ifnottex
-@tex
-$val\times 2^{exp}$.
-@end tex
-<<ldexpf>> is identical, save that it takes and returns <<float>>
-rather than <<double>> values.
-
-RETURNS
-<<ldexp>> returns the calculated value.
-
-Underflow and overflow both set <<errno>> to <<ERANGE>>.
-On underflow, <<ldexp>> and <<ldexpf>> return 0.0.
-On overflow, <<ldexp>> returns plus or minus <<HUGE_VAL>>.
-
-PORTABILITY
-<<ldexp>> is ANSI, <<ldexpf>> is an extension.
-
-*/
-
-/******************************************************************
- * ldexp
- *
- * Input:
- * d - a floating point value
- * e - an exponent value
- *
- * Output:
- * A floating point value f such that f = d * 2 ^ e.
- *
- * Description:
- * This function creates a floating point number f such that
- * f = d * 2 ^ e.
- *
- *****************************************************************/
-
-#include <float.h>
-#include "fdlibm.h"
-#include "zmath.h"
-
-#ifndef _DOUBLE_IS_32BITS
-
-#define DOUBLE_EXP_OFFS 1023
-
-double
-_DEFUN (ldexp, (double, int),
- double d _AND
- int e)
-{
- int exp;
- __uint32_t hd;
-
- GET_HIGH_WORD (hd, d);
-
- /* Check for special values and then scale d by e. */
- switch (numtest (d))
- {
- case NAN:
- errno = EDOM;
- break;
-
- case INF:
- errno = ERANGE;
- break;
-
- case 0:
- break;
-
- default:
- exp = (hd & 0x7ff00000) >> 20;
- exp += e;
-
- if (exp > DBL_MAX_EXP + DOUBLE_EXP_OFFS)
- {
- errno = ERANGE;
- d = z_infinity.d;
- }
- else if (exp < DBL_MIN_EXP + DOUBLE_EXP_OFFS)
- {
- errno = ERANGE;
- d = -z_infinity.d;
- }
- else
- {
- hd &= 0x800fffff;
- hd |= exp << 20;
- SET_HIGH_WORD (d, hd);
- }
- }
-
- return (d);
-}
-
-#endif /* _DOUBLE_IS_32BITS */