Function avr_libc::strstr_PF

pub unsafe extern "C" fn strstr_PF(s1: *const i8, s2: uint_farptr_t) -> *mut i8

\ingroup avr_pgmspace \fn char *strstr_PF(const char *s1, uint_farptr_t s2) \brief Locate a substring.

The strstr_PF() function finds the first occurrence of the substring \c s2 in the string \c s1. The terminating '\0' characters are not compared. The strstr_PF() function is similar to strstr() except that \c s2 is a far pointer to a string in program space.

\returns The strstr_PF() function returns a pointer to the beginning of the substring, or NULL if the substring is not found. If \c s2 points to a string of zero length, the function returns \c s1. The contents of RAMPZ SFR are undefined when the function returns.