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    The following form allows you to view linux man pages.

    Command:

    wcwidth

    
    
    

    SYNOPSIS

           #define _XOPEN_SOURCE       /* See feature_test_macros(7) */
           #include <wchar.h>
    
           int wcwidth(wchar_t c);
    
    
    

    DESCRIPTION

           The  wcwidth()  function returns the number of columns needed to repre-
           sent the wide character c.  If c is a  printable  wide  character,  the
           value is at least 0.  If c is null wide character (L'\0'), the value is
           0.  Otherwise -1 is returned.
    
    
    

    RETURN VALUE

           The wcwidth() function returns the number of column positions for c.
    
    
    

    ATTRIBUTES

       Multithreading (see pthreads(7))
           The wcwidth() function is  thread-safe  with  exceptions.   It  can  be
           safely  used  in multithreaded applications, as long as setlocale(3) is
           not called to change the locale during its execution.
    
    
    

    CONFORMING TO

           POSIX.1-2001.
    
           Note that glibc before 2.2.5 used the prototype
           int wcwidth(wint_t c);
    
    
    

    NOTES

           The behavior of wcwidth() depends on the LC_CTYPE category of the  cur-
           rent locale.
    
    
    

    SEE ALSO

           iswprint(3), wcswidth(3)
    
    
    

    GNU 2014-01-22 WCWIDTH(3)

    
    
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