#include "safe_stdio.h"
#include "safe_string.h"
#include <stdlib.h>
#include <math.h>

int main( int argc, char *argv[] )
{
    int ret_status = -1;
    FILE *fp = NULL;

    if ( 1 < argc ) {
        const char *file = argv[1];
        const size_t max_elem = 32;
        size_t begin[max_elem];
        size_t length[max_elem];
        char buf[512];
        ssize_t n;

        /* ファイルをオープン */
        fp = fopen(file, "r");
        if ( fp == NULL ) {
            fprintf(stderr,"[ERROR] cannot open: %s\n",file);
            goto quit;
        }

        /* 1行ずつスキャン */
        while ( 0 <= (n=fscan_str(fp,buf,512," ",begin,length,max_elem)) ) {
           if ( n == 3 ) {
               const size_t size_el = 512;
               char el[size_el];
               double ra, dec;
               safe_strncpy(el,size_el, buf + begin[0], length[0]);
               printf("%s ",el);
               safe_strncpy(el,size_el, buf + begin[1], length[1]);
               ra = M_PI * atof(el) / 180.0;
               safe_strncpy(el,size_el, buf + begin[2], length[2]);
               dec = M_PI * atof(el) / 180.0;
               printf("%g %g %g\n",
                      cos(ra)*cos(dec), sin(ra)*cos(dec), sin(dec));
           }
        }
        
    }

    ret_status = 0;
 quit:
    if ( fp != NULL ) fclose(fp);
    return ret_status;
}