| a64l() |   | HP C/iX Library Reference Manual | 
| abort() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| abs() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| access() | POSIX.1 | This manual | 
| acos() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| alarm() | POSIX.1 | This manual | 
| asctime() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| asin() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| assert() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| atan() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| atan2() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| atexit() | ANSI C | HP C/iX Library Reference Manual | 
| atof() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| atoi() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| atol() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| Bessel functions  |   | HP C/iX Library Reference Manual | 
| brk() |   | HP C/iX Library Reference Manual | 
| bsearch() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| calloc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| catread() |   | HP C/iX Library Reference Manual | 
| ccode() |   | HP C/iX Library Reference Manual | 
| ceil() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| cfgetispeed() | POSIX.1 | Not currently implemented | 
| cfgetospeed() | POSIX.1 | Not currently implemented | 
| cfsetispeed() | POSIX.1 | Not currently implemented | 
| cfsetospeed() | POSIX.1 | Not currently implemented | 
| chdir() | POSIX.1 | This manual | 
| chmod() | POSIX.1 | This manual | 
| chown() | POSIX.1 | This manual | 
| clc05() |   | HP C/iX Library Reference Manual | 
| clearerr() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| clock() | ANSI C | HP C/iX Library Reference Manual | 
| close() | POSIX.1 | This manual | 
| closedir() | POSIX.1 | This manual | 
| cos() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| confstr() | POSIX.2 | This manual | 
| cosh() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| creat() | POSIX.1 | This manual
 | 
| crypt() |   | HP C/iX Library Reference Manual | 
| ctermid() | POSIX.1 | This manual | 
| ctime() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| difftime() | ANSI C | HP C/iX Library Reference Manual | 
| div() | ANSI C | HP C/iX Library Reference Manual | 
| dup() | POSIX.1 | This manual | 
| dup2() | POSIX.1 | This manual | 
| ecvt() |   | HP C/iX Library Reference Manual | 
| encrypt() |   | HP C/iX Library Reference Manual | 
| erf() |   | HP C/iX Library Reference Manual | 
| erfc() |   | HP C/iX Library Reference Manual | 
| execl() | POSIX.1 | This manual | 
| execle() | POSIX.1 | This manual | 
| execlp() | POSIX.1 | This manual | 
| execv() | POSIX.1 | This manual | 
| execve() | POSIX.1 | This manual | 
| execvp() | POSIX.1 | This manual | 
| exit() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| _exit() | POSIX.1 | This manual | 
| exp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fabs() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fclose() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fcntl() | POSIX.1 | This manual | 
| fcvt() |   | HP C/iX Library Reference Manual | 
| fdopen() | POSIX.1 | HP C/iX Library Reference Manual | 
| feof() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| ferror() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fflush() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fgetc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fgetpos() | ANSI C | HP C/iX Library Reference Manual | 
| fgets() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fileno() | POSIX.1 | HP C/iX Library Reference Manual | 
| floor() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fmod() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fnmatch() | POSIX.2 | This manual | 
| fopen() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fork() | POSIX.1 | This manual | 
| fpathconf() | POSIX.2 | This manual | 
| fprintf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fprintmsg() |   | HP C/iX Library Reference Manual | 
| fputc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fputs() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fread() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| free() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| freopen() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| frexp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fscanf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fseek() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fsetpos() | ANSI C | HP C/iX Library Reference Manual | 
| fstat() | POSIX.1 | This manual | 
| ftell() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| fwrite() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| gamma() |   | HP C/iX Library Reference Manual | 
| gcvt() |   | HP C/iX Library Reference Manual | 
| getc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| getchar() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| getcwd() | POSIX.1 | This manual | 
| getegid() | POSIX.1 | This manual | 
| getenv() | POSIX.1, ANSI C | This manual | 
| geteuid() | POSIX.1 | This manual | 
| getgid() | POSIX.1 | This manual | 
| getgrgid() | POSIX.1 | This manual | 
| getgrnam() | POSIX.1 | This manual | 
| getgroups() | POSIX.1 | This manual | 
| getlogin() | POSIX.1 | This manual
 | 
| getmsg() |   | HP C/iX Library Reference Manual | 
| getopt() | IEEE, POSIX.2 | This manual | 
| getpgrp() | POSIX.1 | This manual | 
| getpid() | POSIX.1 | This manual | 
| getppid() | POSIX.1 | This manual | 
| getpwnam() | POSIX.1 | This manual | 
| getpwuid() | POSIX.1 | This manual | 
| gets() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| getuid() | POSIX.1 | This manual | 
| getw |   | HP C/iX Library Reference Manual | 
| glob() | POSIX.2 | This manual | 
| globfree() | POSIX.2 | This manual | 
| gmtime() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| hcreate() |   | HP C/iX Library Reference Manual | 
| hdestroy() |   | HP C/iX Library Reference Manual | 
| hsearch() |   | HP C/iX Library Reference Manual | 
| hypot() |   | HP C/iX Library Reference Manual | 
| ioctl() |   | This manual | 
| isalnum() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isalpha() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isatty() | POSIX.1 | This manual | 
| iscntrl() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isdigit() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isgraph() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| islower() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isprint() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| ispunct() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isspace() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isupper() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| isxdigit() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| kill() | POSIX.1 | This manual | 
| l3tol() |   | HP C/iX Library Reference Manual | 
| l64a() |   | HP C/iX Library Reference Manual | 
| labs() | ANSI C | HP C/iX Library Reference Manual | 
| ldexp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| ldiv() | ANSI C | HP C/iX Library Reference Manual | 
| lfind() |   | HP C/iX Library Reference Manual | 
| link() | POSIX.1 | Not currently implemented | 
| localeconv() | ANSI C | HP C/iX Library Reference Manual | 
| localtime() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| log() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| log10() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| longjmp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| lsearch() |   | HP C/iX Library Reference Manual | 
| lseek() | POSIX.1 | This manual | 
| ltol3() |   | HP C/iX Library Reference Manual | 
| mallinfo() |   | HP C/iX Library Reference Manual | 
| malloc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| mallopt() |   | HP C/iX Library Reference Manual | 
| matherr() |   | HP C/iX Library Reference Manual | 
| mblen() | ANSI C | HP C/iX Library Reference Manual | 
| mbstowcs() | ANSI C | HP C/iX Library Reference Manual | 
| mbtowc() | ANSI C | HP C/iX Library Reference Manual | 
| memccpy() |   | HP C/iX Library Reference Manual | 
| memchr() | ANSI C | HP C/iX Library Reference Manual | 
| memcmp() | ANSI C | HP C/iX Library Reference Manual | 
| memcpy() | ANSI C | HP C/iX Library Reference Manual | 
| memmove() | ANSI C | HP C/iX Library Reference Manual | 
| memset() | ANSI C | HP C/iX Library Reference Manual | 
| mkdir() | POSIX.1 | This manual | 
| mkfifo() | POSIX.1 | This manual | 
| mknod() | ∅ | This manual | 
| mktemp() |   | HP C/iX Library Reference Manual | 
| mktime() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| modf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| _mpe_fileno() |   | HP C/iX Library Reference Manual | 
| offsetof() | ANSI C | HP C/iX Library Reference Manual | 
| open() | POSIX.1 | This manual | 
| opendir() | POSIX.1 | This manual | 
| pathconf() | POSIX.2 | This manual | 
| pause() | POSIX.1 | This manual | 
| pclose() | POSIX.2 | This manual | 
| perror() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| pipe() | POSIX.1 | This manual | 
| popen() | POSIX.2 | This manual | 
| pow() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| printf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| printmsg() |   | HP C/iX Library Reference Manual | 
| putc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| putchar() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| putenv() |   | This manual | 
| puts() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| putw() |   | HP C/iX Library Reference Manual | 
| qsort() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| raise() | ANSI C | HP C/iX Library Reference Manual | 
| rand() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| rand48() |   | HP C/iX Library Reference Manual | 
| read() | POSIX.1 | This manual | 
| readdir() | POSIX.1 | This manual
 | 
| realloc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| regcomp() | POSIX.2 | This manual | 
| regerror() | POSIX.2 | This manual | 
| regexec() | POSIX.2 | This manual | 
| regfree() | POSIX.2 | This manual | 
| remove() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| rename() | POSIX.1, ANSI C | This manual | 
| rewind() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| rewinddir() | POSIX.1 | This manual | 
| rmdir() | POSIX.1 | This manual | 
| sbrk() |   | HP C/iX Library Reference Manual | 
| scanf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| setbuf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| setgid() | POSIX.1 | Not currently implemented | 
| setjmp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| setkey() |   | HP C/iX Library Reference Manual | 
| setlocale() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| setpgid() | POSIX.1 | Not currently implemented | 
| setsid() | POSIX.1 | Not currently implemented
 | 
| setuid() | POSIX.1 | This manual | 
| setvbuf() | ANSI C | HP C/iX Library Reference Manual | 
| sigaction() | POSIX.1 | This manual | 
| sigaddset() | POSIX.1 | This manual | 
| sigdelset() | POSIX.1 | This manual | 
| sigemptyset() | POSIX.1 | This manual | 
| sigfillset() | POSIX.1 | This manual | 
| sigismember() | POSIX.1 | This manual | 
| siglongjmp() | POSIX.1 | This manual | 
| signal() | ANSI C | HP C/iX Library Reference Manual | 
| sigpending() | POSIX.1 | This manual | 
| sigprocmask() | POSIX.1 | This manual | 
| sigsetjmp() | POSIX.1 | This manual | 
| sigsuspend() | POSIX.1 | This manual | 
| sin() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| sinh() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| sleep() | POSIX.1 | This manual | 
| sprintf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| sprintmsg() |   | HP C/iX Library Reference Manual | 
| sqrt() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| srand() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| sscanf() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| stat() | POSIX.1 | This manual | 
| strcat() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strchr() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strcmp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strcoll() | ASNI C | HP C/iX Library Reference Manual | 
| strcpy() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strcspn() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strerror() | ANSI C | HP C/iX Library Reference Manual | 
| strftime() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strlen() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strncat() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strncmp() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strncpy() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strpbrk() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strrchr() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strspn() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strstr() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strtod() | ANSI C | HP C/iX Library Reference Manual | 
| strtok() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| strtol() | ANSI C | HP C/iX Library Reference Manual | 
| strtoul() | ANSI C | HP C/iX Library Reference Manual | 
| strxfrm() | ANSI C | HP C/iX Library Reference Manual | 
| swab() |   | HP C/iX Library Reference Manual | 
| symlink() | This manual |   | 
| sysconf() | POSIX.2 | This manual | 
| system() | ANSI C, POSIX.2 | This manual | 
| symlink() | ∅ | This manual | 
| tan() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| tanh() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| tcdrain() | POSIX.1 | Not currently implemented | 
| tcflow() | POSIX.1 | Not currently implemented | 
| tcflush() | POSIX.1 | Not currently implemented | 
| tcgetattr() | POSIX.1 | Not currently implemented | 
| tcgetpgrp() | POSIX.1 | Not currently implemented | 
| tcsendbreak() | POSIX.1 | Not currently implemented | 
| tcsetattr() | POSIX.1 | Not currently implemented | 
| tcsetpgrp() | POSIX.1 | Not currently implemented | 
| tdelete() |   | HP C/iX Library Reference Manual | 
| tfind() |   | HP C/iX Library Reference Manual | 
| time() | POSIX.1, ANSI C | This manual | 
| times() | POSIX.1 | This manual
 | 
| tmpfile() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| tmpnam() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| toascii() |   | HP C/iX Library Reference Manual | 
| tolower() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| toupper() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| tsearch() |   | HP C/iX Library Reference Manual | 
| ttyname() | POSIX.1 | This manual | 
| twalk() |   | HP C/iX Library Reference Manual | 
| tzset() | POSIX.1 | HP C/iX Library Reference Manual | 
| umask() | POSIX.1 | This manual | 
| uname() | POSIX.1 | This manual | 
| ungetc() | ANSI C, POSIX.1 | HP C/iX Library Reference Manual | 
| unlink() | POSIX.1 | This manual | 
| utime() | POSIX.1 | This manual | 
| va_arg() | ANSI C | HP C/iX Library Reference Manual | 
| va_end() | ANSI C | HP C/iX Library Reference Manual | 
| va_start() | ANSI C | HP C/iX Library Reference Manual | 
| vfprintf() | ANSI C | HP C/iX Library Reference Manual | 
| vprintf() | ANSI C | HP C/iX Library Reference Manual | 
| vsprintf() | ANSI C | HP C/iX Library Reference Manual | 
| wait() | POSIX.1 | This manual | 
| waitpid() | POSIX.1 | This manual | 
| wcstombs() | ANSI C | HP C/iX Library Reference Manual | 
| wctomb() | ANSI C | HP C/iX Library Reference Manual | 
| wordexp() | POSIX.2 | This manual | 
| wordfree() | POSIX.2 | This manual | 
| write() | POSIX.1 | This manual
 |