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Diffstat (limited to 'newlib/libm/math/w_exp2.c')
| -rw-r--r-- | newlib/libm/math/w_exp2.c | 75 |
1 files changed, 0 insertions, 75 deletions
diff --git a/newlib/libm/math/w_exp2.c b/newlib/libm/math/w_exp2.c deleted file mode 100644 index ed0bc39e9..000000000 --- a/newlib/libm/math/w_exp2.c +++ /dev/null @@ -1,75 +0,0 @@ - -/* @(#)w_exp2.c 5.1 93/09/24 */ -/* - * ==================================================== - * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. - * - * Developed at SunPro, a Sun Microsystems, Inc. business. - * Permission to use, copy, modify, and distribute this - * software is freely granted, provided that this notice - * is preserved. - * ==================================================== - */ - -/* -FUNCTION - <<exp2>>, <<exp2f>>---exponential -INDEX - exp2 -INDEX - exp2f - -ANSI_SYNOPSIS - #include <math.h> - double exp2(double <[x]>); - float exp2f(float <[x]>); - -TRAD_SYNOPSIS - #include <math.h> - double exp2(<[x]>); - double <[x]>; - - float exp2f(<[x]>); - float <[x]>; - -DESCRIPTION - <<exp2>> and <<exp2f>> calculate 2 ^ <[x]>, that is, - @ifnottex - 2 raised to the power <[x]>. - @end ifnottex - @tex - $2^x$ - @end tex - - You can use the (non-ANSI) function <<matherr>> to specify - error handling for these functions. - -RETURNS - On success, <<exp2>> and <<exp2f>> return the calculated value. - If the result underflows, the returned value is <<0>>. If the - result overflows, the returned value is <<HUGE_VAL>>. In - either case, <<errno>> is set to <<ERANGE>>. - -*/ - -/* - * wrapper exp2(x) - */ - -#include "fdlibm.h" -#include <errno.h> -#include <math.h> - -#ifndef _DOUBLE_IS_32BITS - -#ifdef __STDC__ - double exp2(double x) /* wrapper exp2 */ -#else - double exp2(x) /* wrapper exp2 */ - double x; -#endif -{ - return pow(2.0, x); -} - -#endif /* defined(_DOUBLE_IS_32BITS) */ |