|WCWIDTH(3)||Linux Programmer's Manual||WCWIDTH(3)|
NAMEwcwidth - determine columns needed for a wide character
#define _XOPEN_SOURCE /* See feature_test_macros(7) */ #include
int wcwidth(wchar_t c );
DESCRIPTIONThe wcwidth() function returns the number of columns needed to represent 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 VALUEThe wcwidth() function returns the number of column positions for c.
int wcwidth(wint_t c );
NOTESThe behavior of wcwidth() depends on the LC_CTYPE category of the current locale.
SEE ALSOiswprint(3), wcswidth(3)
COLOPHONThis page is part of release 3.53 of the Linux man-pages project. A description of the project, and information about reporting bugs, can be found at http://www.kernel.org/doc/man-pages/.