_FP_SETCW()

[Philippe Després]

Hello,

anyone know how to set the control word from fpu_control.h to obtain a
floating point behavior like the one on Windows (VC++), i.e. that for a
double, 

double x=cos(0.2); 

printf("%20.20f",x); on windows gives
 x=0.98006657784124163000 (zeros after the 17th digit)

on linux, those zeros are filled with something else and my results
depends on this...

Actually, I use 

fpu_control_t fp_ctrl;
fp_ctrl=(_FPU_DEFAULT & ~ _FPU_EXTENDED)|_FPU_DOUBLE;
_FPU_SETCW(fp_ctrl);

before calculation.
Thanks
Philippe