The following functions are available on all OpenVMS VAX, Alpha,
and Integrity servers versions:
abort abs access acos
alarm asctime asin assert
atan2 atan atexit atof
atoi atoll (Alpha) atol atoq (Alpha)
box brk bsearch cabs
calloc ceil cfree chdir
chmod chown clearerr clock
close cosh cos creat
ctermid ctime cuserid decc$crtl_init
decc$fix_time decc$from_vms decc$match_wild
decc$record_read decc$record_write decc$set_reentrancy
decc$to_vms decc$translate_vms
delete delwin difftime div
dup2 dup ecvt endwin
execle execlp execl execve
execvp execv exit _exit
exp fabs fclose fcvt
fdopen feof ferror fflush
fgetc fgetname fgetpos fgets
fileno floor fmod fopen
fprintf fputc fputs fread
free freopen frexp fscanf
fseek fsetpos fstat fsync
ftell ftime fwait fwrite
gcvt getchar getcwd getc
getegid getenv geteuid getgid
getname getpid getppid gets
getuid getw gmtime gsignal
hypot initscr isalnum isalpha
isapipe isascii isatty iscntrl
isdigit isgraph islower isprint
ispunct isspace isupper isxdigit
kill labs ldexp ldiv
llabs (Alpha) lldiv(Alpha) localeconv localtime
log10 log longjmp longname
lseek lwait malloc mblen
mbstowcs mbtowc memchr memcmp
memcpy memmove memset mkdir
mktemp mktime modf mvwin
mv[w]addstr newwin nice open
overlay overwrite pause perror
pipe pow printf putchar
putc puts putw qabs (Alpha)
qdiv (Alpha) qsort raise rand
read realloc remove rename
rewind sbrk scanf scroll
setbuf setgid setjmp setlocale
setuid setvbuf sigblock signal
sigpause sigstack(VAX) sigvec sinh
sin sleep sprintf sqrt
srand sscanf ssignal stat
strcat strchr strcmp strcoll
strcpy strcspn strerror strftime
strlen strncat strncmp strncpy
strpbrk strrchr strspn strstr
strtod strtok strtoll strtol (Alpha)
strtoq (Alpha) strtoull (Alpha) strtoul strtouq (Alpha)
strxfrm subwin system tanh
tan times time tmpfile
tmpnam toascii tolower _tolower
touchwin toupper _toupper ttyname
umask ungetc vaxc$calloc_opt vaxc$cfree_opt
vaxc$crtl_init vaxc$establish vaxc$free_opt vaxc$malloc_opt
vaxc$realloc_opt va_arg va_count va_end
va_start va_start_1 vfork vfprintf
vprintf vsprintf wait wcstombs
wctomb write [w]addch [w]addstr
[w]clear [w]clrattr [w]clrtobot [w]clrtoeol
[w]delch [w]deleteln [w]erase [w]getch
[w]getstr [w]inch [w]insch [w]insertln
[w]insstr [w]move [w]printw [w]refresh
[w]scanw [w]setattr [w]standend [w]standout