c-strtok

//
//  main.c
//
//
//  Created by myhaspl on 2018/10/22.
//   [email protected].
//

#include <stdlib.h>
#include <stdio.h>
char mytoken[10];
char* getCord(int placeOnArray, char mystr[80]){
    const char s[2] = " ";
    char str2[7];

    char* token=mytoken;
    for (int i=placeOnArray ;i<placeOnArray+7;i++){
        str2[i-placeOnArray]=mystr[i];
    }
    strcpy(mytoken,strtok(str2, s));
    printf("%s\n",mytoken);
    return mytoken;
}
int main(){
    char str[80] = "ATOM 1 N ASN A 1 -4.890 -12.296 -15.280 1.00 30.36 N";
    char* token=getCord(17,str);
    printf("%s\n",token);
    float number=atof(token);
    printf( "%f\n", number );
    return 0;
}

-4.890
-4.890
-4.890000