- #ifndef NULL
- #define NULL 0
- #endif
- #define strchr strchr
- #define strrchr strrchr
- extern char * strcat();
- extern char * strchr();
- extern int strcmp();
- extern char * strcpy();
- extern int strlen();
- extern char * strncat();
- extern int strncmp();
- extern char * strncpy();
- extern char * strrchr();
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