wcwidth man page on YellowDog

wcwidth man page on YellowDog

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WCWIDTH(3)		   Linux Programmer's Manual		    WCWIDTH(3)

NAME
       wcwidth - determine columns needed for a wide character

SYNOPSIS
       #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 L'\0', the value is 0. Otherwise -1 is
       returned.

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

CONFORMING TO
       C99.

       Note that glibc before 2.2.5 used the prototype
       int wcwidth(wint_t c);

SEE ALSO
       iswprint(3), wcswidth(3)

NOTES
       The behaviour of wcwidth() depends on the LC_CTYPE category of the cur‐
       rent locale.

GNU				  1999-07-25			    WCWIDTH(3)

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