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/* Public domain. */
#ifndef STR_H
#define STR_H
extern unsigned int str_copy(char *,const char *);
extern int str_diff(const char *,const char *);
extern int str_diffn(const char *,const char *,unsigned int);
extern unsigned int str_len(const char *);
extern unsigned int str_chr(const char *,int);
extern unsigned int str_rchr(const char *,int);
extern int str_start(const char *,const char *);
#define str_equal(s,t) (!str_diff((s),(t)))
#endif
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