FATTACH (man3p)
fattach — attach a STREAMS-based file descriptor to a file in the file system name space (STREAMS)
fattach — attach a STREAMS-based file descriptor to a file in the file system name space (STREAMS)
iswblank, iswblank_l — test for a blank wide-character code
pthread_barrier_wait — synchronize at a barrier
sprintf — print formatted output
pthread_setconcurrency — set the level of concurrency
isxdigit, isxdigit_l — test for a hexadecimal digit
uname — get the name of the current system
sinh, sinhf, sinhl — hyperbolic sine functions
vswprintf — wide-character formatted output of a stdarg argument list
posix_trace_set_filter — set filter of an initialized trace stream (TRACING)