typedef signed int __int32_t; typedef unsigned int __uint32_t; typedef union { double value; struct { __uint32_t msw; __uint32_t lsw; } parts; } ieee_double_shape_type; two52= 4.50359962737049600000e+15, w6 = -1.63092934096575273989e-03; double sin_pi(double x) { double y,z; __int32_t n,ix; ieee_double_shape_type gh_u; gh_u.value = (x); (ix) = gh_u.parts.msw; if(ix<0x43300000) z = y+two52; ieee_double_shape_type gl_u; gl_u.value = (z); (n) = gl_u.parts.lsw; n &= 1; switch (n) { case 0: __kernel_sin(); } }