VMS Help
CRTL, Version-Dependency Tables
*Conan The Librarian
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New functions are added to the HP C Run-Time Library with each
version of HP C. These functions are implemented and shipped with
the OpenVMS operating system, while the documentation and header
files containing their prototypes are shipped with versions of
the HP C compiler.
You might have a newer version of HP C that has header files
and documentation for C RTL functions that are not supported on
your older OpenVMS system. For example, if your target operating
system platform is OpenVMS Version 7.2, you cannot use HP C RTL
functions introduced on OpenVMS Version 7.3, even though they are
documented in this manual.
The following tables list what HP C RTL functions are supported
on recent OpenVMS versions. This is helpful for determining the
functions to avoid using on your target OpenVMS platforms.
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
The following additional functions are available on OpenVMS VAX
and OpenVMS Alpha Version 6.2 and higher:
catclose catgets catopen fgetwc
fgetws fputwc fputws getopt
getwc getwchar iconv iconv_close
iconv_open iswalnum iswalpha iswcntrl
iswctype iswdigit iswgraph iswlower
iswprint iswpunct iswspace iswupper
iswxdigit nl_langinfo putwc putwchar
strnlen strptime towlower towupper
ungetwc wcscat wcschr wcscmp
wcscoll wcscpy wcscspn wcsftime
wcslen wcsncat wcsncmp wcsncpy
wcspbrk wcsrchr wcsspn wcstol
wcstoul wcswcs wcswidth wcsxfrm
wcstod wctype wcwidth wcstok
The following additional functions are available on OpenVMS VAX
and OpenVMS Alpha Version 7.0 and higher:
basename bcmp bcopy btowc
bzero closedir confstr dirname
drand48 erand48 ffs fpathconf
ftruncate ftw fwide fwprintf
fwscanf getclock getdtablesizegetitimer
getlogin getpagesize getpwnam getpwuid
gettimeofday index initstate jrand48
lcong48 lrand48 mbrlen mbrtowc
mbsinit mbsrtowcs memccpy mkstemp
mmap mprotect mrand48 msync
munmap nrand48 opendir pathconf
pclose popen putenv random
readdir rewinddir rindex rmdir
seed48 seekdir setenv setitimer
setstate sigaction sigaddset sigdelset
sigemptyset sigfillset sigismember siglongjmp
sigpending sigprocmask sigsetjmp sigsuspend
srand48 srandom strcasecmp strdup
strfmon strncasecmp strsep swab
swprintf swscanf sysconf telldir
tempnam towctrans truncate tzset
ualarm uname unlink unsetenv
usleep vfwprintf vswprintf vwprintf
wait3 wait4 waitpid wcrtomb
wcsrtombs wcsstr wctob wctrans
wmemchr wmemcmp wmemcpy wmemmove
wmemset wprintf wscanf
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4 - V7.0 Alpha and Higher
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The following additional functions are available on OpenVMS Alpha
Version 7.0 and higher:
_basename32 _basename64 _bsearch32 _bsearch64
_calloc32 _calloc64 _catgets32 _catgets64
_ctermid32 _ctermid64 _cuserid32 _cuserid64
_dirname32 _dirname64 _fgetname32 _fgetname64
_fgets32 _fgets64 _fgetws32 _fgetws64
_gcvt32 _gcvt64 _getcwd32 _getcwd64
_getname32 _getname64 _gets32 _gets64
_index32 _index64 _longname32 _longname64
_malloc32 _malloc64 _mbsrtowcs32 _mbsrtowcs64
_memccpy32 _memccpy64 _memchr32 _memchr64
_memcpy32 _memcpy64 _memmove32 _memmove64
_memset32 _memset64 _mktemp32 _mktemp64
_mmap32 _mmap64 _qsort32 _qsort64
_realloc32 _realloc64 _rindex32 _rindex64
_strcat32 _strcat64 _strchr32 _strchr64
_strcpy32 _strcpy64 _strdup32 _strdup64
_strncat32 _strncat64 _strncpy32 _strncpy64
_strpbrk32 _strpbrk64 _strptime32 _strptime64
_strrchr32 _strrchr64 _strsep32 _strsep64
_strstr32 _strstr64 _strtod32 _strtod64
_strtok32 _strtok64 _strtol32 _strtol64
_strtoll32 _strtoll64 _strtoq32 _strtoq64
_strtoul32 _strtoul64 _strtoull32 _strtoull64
_strtouq32 _strtouq64 _tmpnam32 _tmpnam64
_wcscat32 _wcscat64 _wcschr32 _wcschr64
_wcscpy32 _wcscpy64 _wcsncat32 _wcsncat64
_wcsncpy32 _wcsncpy64 _wcspbrk32 _wcspbrk64
_wcsrchr32 _wcsrchr64 _wcsrtombs32 _wcsrtombs64
_wcsstr32 _wcsstr64 _wcstok32 _wcstok64
_wcstol32 _wcstol64 _wcstoul32 _wcstoul64
_wcswcs32 _wcswcs64 _wmemchr32 _wmemchr64
_wmemcpy32 _wmemcpy64 _wmemmove32 _wmemmove64
_wmemset32 _wmemset64
The following additional functions are available on OpenVMS VAX
and OpenVMS Alpha Version 7.2 and higher:
asctime_r ctime_r decc$set_child_standard_streams
decc$write_eof_to_mbx decc$validated lclose
dlerror dlopen dlsym
fcntl gmtime_r localtime_r
wchar
The following additional functions are available on OpenVMS VAX
and OpenVMS Alpha Version 7.3 and higher:
fchown
link
utime
utimes
writev
The following additional functions are available on OpenVMS Alpha
Version 7.3-1 and higher:
access fseeko
chmod ftello
chown ftw
fstat readdir_r
stat
vfscanf vfwscanf
vscanf vwscanf
vsscanf vswscanf
decc$feature_get_index
decc$feature_get_name
decc$feature_get_value
decc$feature_set_value
The following additional functions are available on OpenVMS Alpha
Version 7.3-2 and higher:
a64l clock_getres clock_gettime clock_settime
endgrent getgrent getgrgid getgrgid_r
getgrnam getgrnam_r getpgid getpgrp
_getpwnam64 getpwnam_r _getpwnam_r64 _getpwent64
getpwuid _getpwuid64 getpwuid_r _getpwuid_r64
getsid l64a nanosleep poll
pread pwrite rand_r readv
_readv64 seteuid setgrent setpgid
setpgrp setregid setreuid setsid
sighold sigignore sigrelse sigtimedwait
sigwait sigwaitinfo snprintf ttyname_r
vsnprintf __writev64 decc$set_child_default_dir
The following additional functions are available on OpenVMS Alpha
and Integrity servers Version 8.2 and higher:
clearerr_unlocked feof_unlocked
ferror_unlocked fgetc_unlocked
fputc_unlocked flockfile
ftrylockfile funlockfile
getc_unlocked getchar_unlocked
putc_unlocked putchar_unlocked
statvfs fstatvfs
_glob32 _glob64
_globfree32 _globfree64
socketpair
The following additional functions are available on OpenVMS Alpha
and Integrity servers Version 8.3 and higher:
crypt fchmod
encrypt lstat
setkey readlink
lchown symlink
realpath unlink
The following additional functions are available on OpenVMS Alpha
and Integrity servers Version 8.4 and higher:
ftok sem_init
semctl sem_open
semget sem_post
semop sem_timedwait
sem_close sem_trywait
sem_destroy sem_unlink
sem_getvalue sem_wait