pg_ascii_tolower pg_ascii_toupper pg_qsort pg_qsort_strcmp pg_strcasecmp pg_strncasecmp pg_tolower pg_toupper qsort qsort_arg qsort_arg_comparator

pg_strncasecmp() int pg_strncasecmp ( const char *  s1, const char *  s2, size_t  n  )