1 #ifndef STR_H
2 #define STR_H
3 
4 extern unsigned int str_copy(char *,const char *);
5 extern int str_diff(const char *,const char *);
6 extern int str_diffn(const char *,const char *,unsigned int);
7 extern unsigned int str_len(const char *);
8 extern unsigned int str_chr(const char *,int);
9 extern unsigned int str_rchr(const char *,int);
10 extern int str_start(const char *,const char *);
11 
12 #define str_equal(s,t) (!str_diff((s),(t)))
13 
14 #endif
15