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glibc  2.9
Functions
w_j1f.c File Reference
#include <math.h>
#include "math_private.h"

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Functions

float j1f (float x)
float y1f (float x)

Function Documentation

float j1f ( float  x)

Definition at line 30 of file w_j1f.c.

{
#ifdef _IEEE_LIBM
       return __ieee754_j1f(x);
#else
       float z;
       z = __ieee754_j1f(x);
       if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
       if(fabsf(x)>(float)X_TLOSS) {
              /* j1(|x|>X_TLOSS) */
               return (float)__kernel_standard((double)x,(double)x,136);
       } else
           return z;
#endif
}

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float y1f ( float  x)

Definition at line 51 of file w_j1f.c.

{
#ifdef _IEEE_LIBM
       return __ieee754_y1f(x);
#else
       float z;
       z = __ieee754_y1f(x);
       if(_LIB_VERSION == _IEEE_ || __isnanf(x) ) return z;
        if(x <= (float)0.0){
                if(x==(float)0.0)
                    /* d= -one/(x-x); */
                    return (float)__kernel_standard((double)x,(double)x,110);
                else
                    /* d = zero/(x-x); */
                    return (float)__kernel_standard((double)x,(double)x,111);
        }
       if(x>(float)X_TLOSS) {
              /* y1(x>X_TLOSS) */
               return (float)__kernel_standard((double)x,(double)x,137);
       } else
           return z;
#endif
}

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