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    The following form allows you to view linux man pages.

    Command:

    wcstol

    
    
    

    SYNOPSIS

           #include <wchar.h>
    
           long wcstol(const wchar_t *restrict nptr, wchar_t **restrict endptr,
                  int base);
           long long wcstoll(const wchar_t *restrict nptr,
                  wchar_t **restrict endptr, int base);
    
    
    

    DESCRIPTION

           These functions shall convert the initial portion of the wide-character
           string pointed to by nptr  to  long,  long  long,  unsigned  long,  and
           unsigned  long  long  representation,  respectively.  First, they shall
           decompose the input string into three parts:
    
            1. An initial, possibly empty, sequence of white-space  wide-character
               codes (as specified by iswspace())
    
            2. A  subject  sequence  interpreted as an integer represented in some
               radix determined by the value of base
    
            3. A final wide-character string of one  or  more  unrecognized  wide-
               character codes, including the terminating null wide-character code
               of the input wide-character string
    
           Then they shall attempt to convert the subject sequence to an  integer,
           and return the result.
    
           If  base  is  0, the expected form of the subject sequence is that of a
           decimal constant, octal constant, or hexadecimal constant, any of which
           may  be preceded by a '+' or '-' sign. A decimal constant begins with a
           non-zero digit, and consists of a sequence of decimal digits. An  octal
           constant  consists  of the prefix '0' optionally followed by a sequence
           of the digits '0' to '7' only. A hexadecimal constant consists  of  the
           prefix  0x  or 0X followed by a sequence of the decimal digits and let-
           ters 'a' (or 'A' ) to 'f' (or 'F' ) with values 10 to 15  respectively.
    
           If the value of base is between 2 and 36, the expected form of the sub-
           ject sequence is a sequence of letters and digits representing an inte-
           ger  with  the radix specified by base, optionally preceded by a '+' or
           '-' sign, but not including an integer suffix. The letters from 'a' (or
           'A' ) to 'z' (or 'Z' ) inclusive are ascribed the values 10 to 35; only
           letters whose ascribed values are less than that of base shall be  per-
           mitted. If the value of base is 16, the wide-character code representa-
           tions of 0x or 0X may optionally precede the sequence  of  letters  and
           digits, following the sign if present.
    
           The  subject  sequence is defined as the longest initial subsequence of
           the input wide-character string, starting  with  the  first  non-white-
           endptr, provided that endptr is not a null pointer.
    
           In  other than the C    or POSIX  locales, other implementation-defined
           subject sequences may be accepted.
    
           If the subject sequence is empty or does not have the expected form, no
           conversion shall be performed; the value of nptr shall be stored in the
           object pointed to by  endptr,  provided  that  endptr  is  not  a  null
           pointer.
    
           These functions shall not change the setting of errno if successful.
    
           Since  0,  {LONG_MIN}  or {LLONG_MIN} and {LONG_MAX} or {LLONG_MAX} are
           returned on error and are also valid returns on success, an application
           wishing  to check for error situations should set errno to 0, then call
           wcstol() or wcstoll(), then check errno.
    
    
    

    RETURN VALUE

           Upon successful completion, these functions shall return the  converted
           value, if any. If no conversion could be performed, 0 shall be returned
            and errno may be set to indicate the error.  If the correct  value  is
           outside  the  range  of  representable  values, {LONG_MIN}, {LONG_MAX},
           {LLONG_MIN}, or {LLONG_MAX} shall be returned (according to the sign of
           the value), and errno set to [ERANGE].
    
    
    

    ERRORS

           These functions shall fail if:
    
           EINVAL The value of base is not supported.
    
           ERANGE The value to be returned is not representable.
    
           These functions may fail if:
    
           EINVAL No conversion could be performed.
    
           The following sections are informative.
    
    
    

    EXAMPLES

           None.
    
    
    

    APPLICATION USAGE

           None.
    
    
    

    RATIONALE

           None.
    
    
    

    FUTURE DIRECTIONS

           None.
    
    
    
    

    IEEE/The Open Group 2003 WCSTOL(P)

    
    
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