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Diffstat (limited to 'mdk-stage1/dietlibc/libm/poly.c')
-rw-r--r-- | mdk-stage1/dietlibc/libm/poly.c | 41 |
1 files changed, 0 insertions, 41 deletions
diff --git a/mdk-stage1/dietlibc/libm/poly.c b/mdk-stage1/dietlibc/libm/poly.c deleted file mode 100644 index cdcfb8c5c..000000000 --- a/mdk-stage1/dietlibc/libm/poly.c +++ /dev/null @@ -1,41 +0,0 @@ -/*--------------------------------------------------------------------------* - -Name __poly - generates a polynomial from arguments - -Usage double __poly ( double x, int n, const double* c ); - -Prototype in math.h - -Description __poly generates a polynomial in x, of degree n, with - coefficients c[0], c[1], ..., c[n]. For example, if n=4, - the generated polynomial is - - c[4]*x^4 + c[3]*x^3 + c[2]*x^2 + c[1]*x + c[0] - - The polynomial is calculated using Horner's method: - - polynom = (..((x*c[n] + c[n-1])*x + c[n-2])..)*x + c[0] - -Return value __poly returns the value of the polynomial as evaluated for - the given x. - A range error occurs if the result exceeds double range. - -*---------------------------------------------------------------------------*/ - -#include <stdio.h> -#include "dietlibm.h" - -double __poly ( double x, size_t n, const double* c) -{ - long double ret; - size_t i; - - i = n; - c += n; - ret = 0; - do - ret = ret * x + *c--; - while ( i-- ); - - return ret; -} |