char ch_cap ( char c );
bool ch_eqi ( char c1, char c2 );
bool ch_is_digit ( char c );
char ch_low ( char c );
void ch_swap ( char *c1, char *c2 );
int ch_to_digit ( char c );
char ch_to_rot13 ( char ch );
char digit_inc ( char c );
char digit_to_ch ( int i );
int file_char_count ( char *file_name );
int file_column_count ( char *input_filename );
int file_delete ( char *file_name );
bool file_exist ( char *file_name );
void file_line_uniform ( char *file_name, int *seed, char *line, 
  int *line_index, int *line_num );
int file_line_width ( char *file_name  );
void file_name_dec ( char *file_name );
void file_name_ext_get ( char *file_name, int *i, int *j );
char *file_name_ext_swap ( char *file_name, char *ext );
void file_name_inc ( char *file_name );
int file_para_count ( char *file_name );
int file_row_count ( char *input_filename );
int file_word_count ( char *input_filename );
int i4_max ( int i1, int i2 );
int i4_min ( int i1, int i2 );
int i4_uniform ( int b, int c, int *seed );
void number_inc ( char *s );
float r4_abs ( float x );
int r4_nint ( float x );
int r8_nint ( double x );
double r8_uniform_01 ( int *seed );
bool s_eqi ( char *s1, char *s2 );
int s_index_last_c ( char *s, char c );
int s_len_trim ( char *s );
void s_low ( char *s );
void s_reverse ( char *s );
int s_to_i4 ( char *s, int *last, bool *error );
double s_to_r8 ( char *s, int *lchar, bool *error );
bool s_to_r8vec ( char *s, int n, double rvec[] );
int s_word_count ( char *s );
void timestamp ( void );