1 #ifndef STR_H

     2 #define STR_H

     3 

     4 extern unsigned int str_copy(char *,char *);

     5 extern int str_diff(char *,char *);

     6 extern int str_diffn(char *,char *,unsigned int);

     7 extern unsigned int str_len(char *);

     8 extern unsigned int str_chr(char *,int);

     9 extern unsigned int str_rchr(char *,int);

    10 extern int str_start(char *,char *);

    11 

    12 #define str_equal(s,t) (!str_diff((s),(t)))

    13 

    14 #endif