#ifndef H_ASPLIT_H 
#define H_ASPLIT_H

enum e_status {ASPLIT_SUCCESS, ASPLIT_INPUT_ERROR, ASPLIT_OUTPUT_A_ERROR,
               ASPLIT_OUTPUT_B_ERROR};

typedef enum e_status status;

/**
 * Asymmetrically splits file named in_file into 2 files, out_file_a, and 
 * out_file_b, putting num_lines (must be non-negative) lines in the first 
 * file, and the rest in the second file.
 * 
 * Accepts parameters in_file, for the name of the input file, out_file_a,
 * for the name of the first output file, out_file_b, for the name of the
 * second output file, the number of lines to output into the 1st file,
 * and a pointer to a long int, which will be set to the number of lines
 * that were output to the 2nd file.Any of the filenames may be "-", 
 * indicating stdin in the case of in_file,or stdout in the case of 
 * out_file_a or out_file_b.
 * 
 * Returns a status codeindicating success or failure. Possible status 
 * values are given by the e_status enumeration in this  header file. 
 * Success is indicated by SUCCESS, and each of the 3 different
 * failure states is indicated by one of the remaining enum values.
 *
 */
int asplit(const char *in_file, const char *out_file_a, const char *out_file_b,
           const long int num_lines, long int *num_rem_lines);

#endif /*H_ASPLIT_H*/