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    iswctype
    isxdigit, iswxdigit
    itoa, _itoa, _itow

- K -
    kbhit
    Keyword Search

- L -
    labs
    ldexp
    ldiv
    lfind
    Library Functions and Macros
    localeconv
    localtime Functions
    lock
    locking, _locking
    log
    log10
    log2
    longjmp
    lsearch
    lseek, _lseek
    ltoa, _ltoa, _ltow

- M -
    main, wmain, WinMain, wWinMain
    malloc Functions
    Math Functions
    matherr
    max
    mblen, _fmblen
    mbrlen, _fmbrlen
    mbrtowc, _fmbrtowc
    mbsrtowcs, _fmbsrtowcs
    mbstowcs, _fmbstowcs
    mbtowc, _fmbtowc
    memccpy, _fmemccpy
    memchr, _fmemchr
    memcmp, _fmemcmp
    memcpy, _fmemcpy
    memicmp, _memicmp, _fmemicmp
    memmove, _fmemmove
    Memory Allocation Functions
    Memory Manipulation Functions
    memset, _fmemset
    Messages Generated by the perror Function
    min
    Miscellaneous Functions
    MK_FP
    mkdir, _mkdir, _wmkdir
    mktime
    modf
    movedata
    Multibyte Character Manipulation Functions
    Multibyte String Manipulation Functions

- N -
    nosound
    Null Characters
    NULL Macro

- O -
    offsetof
    onexit
    open, _open, _wopen
    opendir, _wopendir
    Operating System I/O Functions
    outp
    outpd
    outpw

- P -
    perror, _wperror
    pow
    Presentation Graphics Functions
    printf, wprintf
    Printing Pointer Values
    Process Environment
    Process Primitive Functions
    putc, putwc
    putch
    putchar, putwchar
    putenv, _putenv, _wputenv
    puts, _putws

- Q -
    qsort

- R -
    raise
    rand
    Re-entrant Functions
    read
    readdir, _wreaddir
    Reading Pointer Values
    Reading Ranges
    realloc Functions
    remove, _wremove
    rename, _wrename
    Renaming with a Name that Exists
    rewind
    rewinddir, _wrewinddir
    rmdir, _wrmdir

- S -
    sbrk
    scanf, wscanf
    Searching Functions
    segread
    set_new_handler, _set_new_handler
    setbuf
    setenv, _setenv, _wsetenv
    setjmp
    setlocale, _wsetlocale
    setmode
    setvbuf
    The SIGILL Signal
    signal
    The signal Function
    sin
    sinh
    sisinit
    sleep
    sopen, _wsopen
    sound
    Space Characters
    spawn Functions
    sprintf, swprintf
    sqrt
    srand
    sscanf, swscanf
    stackavail
    stat, _stat, _wstat
    strcat, _fstrcat, wcscat, _mbscat, _fmbscat
    strchr, _fstrchr, wcschr, _mbschr, _fmbschr
    strcmp, _fstrcmp, wcscmp, _mbscmp, _fmbscmp
    strcmpi, wcscmpi
    strcoll, wcscoll, _mbscoll
    strcpy, _fstrcpy, wcscpy, _mbscpy, _fmbscpy
    strcspn, _fstrcspn, wcscspn, _mbscspn, _fmbscspn
    strdup, _strdup, _fstrdup, _wcsdup, _mbsdup, _fmbsdup
    Stream I/O Functions
    The strerror Function
    strerror, wcserror
    strftime, wcsftime, _wstrftime_ms
    stricmp, _stricmp, _fstricmp, _wcsicmp, _mbsicmp, _fmbsicmp
    String Manipulation Functions
    strlen, _fstrlen, wcslen, _mbslen, _fmbslen
    strlwr, _strlwr, _fstrlwr, _wcslwr, _mbslwr, _fmbslwr
    strncat, _fstrncat, wcsncat, _mbsncat, _fmbsncat
    strncmp, _fstrncmp, wcsncmp, _mbsncmp, _fmbsncmp
    strncpy, _fstrncpy, wcsncpy, _mbsncpy, _fmbsncpy
    strnicmp, _strnicmp, _fstrnicmp, _wcsnicmp, _mbsnicmp, _fmbsnicmp
    strnset, _strnset, _fstrnset, _wcsnset, _mbsnset, _fmbsnset
    strpbrk, _fstrpbrk, wcspbrk, _mbspbrk, _fmbspbrk
    strrchr, _fstrrchr, wcsrchr, _mbsrchr, _fmbsrchr
    strrev, _strrev, _fstrrev, _wcsrev, _mbsrev, _fmbsrev
    strset, _strset, _fstrset, _wcsset, _mbsset, _fmbsset
    strspn, _fstrspn, wcsspn, _mbsspn, _fmbsspn
    strspnp, _strspnp, _fstrspnp, _wcsspnp, _mbsspnp, _fmbsspnp
    strstr, _fstrstr, wcsstr, _mbsstr, _fmbsstr
    strtod, wcstod
    strtok, _fstrtok, wcstok, _mbstok, _fmbstok
    strtol, wcstol
    strtoul, wcstoul
    strupr, _strupr, _fstrupr, _wcsupr, _mbsupr, _fmbsupr
    strxfrm, wcsxfrm
    swab
    The system Function
    system, _wsystem

- T -
    Table of Contents
    tan
    tanh
    tell
    Terminating Newline Characters
    Text Functions
    time
    Time Functions
    The Time Zone
    tmpfile
    tmpnam, _wtmpnam
    tolower, _tolower, towlower
    toupper, _toupper, towupper
    Truncation of Text Files
    The TZ Environment Variable
    tzset

- U -
    ultoa, _ultoa, _ultow
    umask
    Underflow of Floating-Point Values
    ungetc, ungetwc
    ungetch
    unlink, _wunlink
    unlock
    Utility Functions
    utime, _utime, _wutime
    utoa, _utoa, _utow

- V -
    va_arg
    va_end
    va_start
    Variable-length Argument Lists
    vcprintf
    vcscanf
    vfprintf, vfwprintf
    vfscanf, vfwscanf
    vprintf, vwprintf
    vscanf, vwscanf
    vsprintf, vswprintf
    vsscanf, vswscanf

- W -
    wait
    wcrtomb, _fwcrtomb
    wcsrtombs, _fwcsrtombs
    wcstombs, _fwcstombs
    wctob
    wctomb, _fwctomb
    wctype
    Wide Character Manipulation Functions
    Wide Character Stream I/O Functions
    Wide String Manipulation Functions
    write

- Z -
    Zero-Length Files