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
15