1 #include "system.h"

     1 #include "system.h"

     2 #include <string.h>

     2 #include <string.h>

     3 #include <stdio.h>

     3 #include <stdio.h>

     4 #include <stdlib.h>

     4 #include <stdlib.h>

     5 #include <wchar.h>

     5 #include <wchar.h>

     6 

     7 

     7 #ifndef M_PI

     8 #ifndef M_PI

     8 // some math.h do not have M_PI macros

     9 // some math.h do not have M_PI macros

     9 # define M_PI    3.14159265358979323846  /* pi */

    10 # define M_PI    3.14159265358979323846  /* pi */

    10 # define M_PI_2  1.57079632679489661923  /* pi/2 */

    11 # define M_PI_2  1.57079632679489661923  /* pi/2 */