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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.17.0/] [newlib/] [libm/] [common/] [s_pow10.c] - Rev 158
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/* @(#)s_pow10.c 5.1 93/09/24 */ /* Modification from s_exp10.c 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 <<pow10>>, <<pow10f>>---exponential INDEX pow10 INDEX pow10f ANSI_SYNOPSIS #include <math.h> double pow10(double <[x]>); float pow10f(float <[x]>); TRAD_SYNOPSIS #include <math.h> double pow10(<[x]>); double <[x]>; float pow10f(<[x]>); float <[x]>; DESCRIPTION <<pow10>> and <<pow10f>> 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, <<pow10>> and <<pow10f>> 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 <<pow10>> and <<pow10f>> are GNU extensions. */ /* * wrapper pow10(x) */ #undef pow10 #include "fdlibm.h" #include <errno.h> #include <math.h> #ifndef _DOUBLE_IS_32BITS #ifdef __STDC__ double pow10(double x) /* wrapper pow10 */ #else double pow10(x) /* wrapper pow10 */ double x; #endif { return pow(10.0, x); } #endif /* defined(_DOUBLE_IS_32BITS) */