FREEADDRINFO (man3p)
freeaddrinfo, getaddrinfo — get address information
freeaddrinfo, getaddrinfo — get address information
fpclassify — classify real floating type
wcpncpy, wcsncpy — copy a fixed-size wide-character string, returning a pointer to its end
sethostent — network host database functions
pthread_rwlock_trywrlock, pthread_rwlock_wrlock — lock a read-write lock object for writing
isnan — test for a NaN
posix_trace_attr_destroy, posix_trace_attr_init — destroy and initialize the trace stream attributes object (TRACING)
pthread_mutexattr_getpshared, pthread_mutexattr_setpshared — get and set the process-shared attribute
_tolower — transliterate uppercase characters to lowercase
wcpncpy — copy a fixed-size wide-character string, returning a pointer to its end