C/stdlib.h/strtod

    
 
//Declaration: double strtod(const char *start, char **end); 

  #include <stdlib.h>
  #include <ctype.h>
  #include <stdio.h>
  int main(void)
  {
    char *end, *start = "100.00 AAA 200.00 BBB";
    end = start;
    while(*start) {
      printf("%f, ", strtod(start, &end));
      printf("Remainder: %s\n" ,end);
      start = end;
      /* move past the non-digits */
      while(!isdigit(*start) && *start) start++;
    }
    return 0;
  }
         
/*
100.000000, Remainder:  AAA 200.00 BBB
200.000000, Remainder:  BBB
*/