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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libm/] [common/] [s_exp10.c] - Rev 286
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/* @(#)s_exp10.c 5.1 93/09/24 */ /* Modified from s_exp2.c by Yaakov Selkowitz 2007. */ /* * ==================================================== * 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 <<exp10>>, <<exp10f>>---exponential INDEX exp10 INDEX exp10f ANSI_SYNOPSIS #include <math.h> double exp10(double <[x]>); float exp10f(float <[x]>); TRAD_SYNOPSIS #include <math.h> double exp10(<[x]>); double <[x]>; float exp10f(<[x]>); float <[x]>; DESCRIPTION <<exp10>> and <<exp10f>> calculate 10 ^ <[x]>, that is, @ifnottex 10 raised to the power <[x]>. @end ifnottex @tex $10^x$ @end tex You can use the (non-ANSI) function <<matherr>> to specify error handling for these functions. RETURNS On success, <<exp10>> and <<exp10f>> 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>>. PORTABILITY <<exp10>> and <<exp10f>> are GNU extensions. */ /* * wrapper exp10(x) */ #undef exp10 #include "fdlibm.h" #include <errno.h> #include <math.h> #ifndef _DOUBLE_IS_32BITS #ifdef __STDC__ double exp10(double x) /* wrapper exp10 */ #else double exp10(x) /* wrapper exp10 */ double x; #endif { return pow(10.0, x); } #endif /* defined(_DOUBLE_IS_32BITS) */
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