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WCSWIDTH(3) Library Functions Manual WCSWIDTH(3) NAME wcswidth - number of column positions in wide-character string LIBRARY Standard C Library (libc, -lc) SYNOPSIS #include <wchar.h> int wcswidth(const wchar_t *pwcs, size_t n); DESCRIPTION The wcswidth() function determines the number of column positions required for the first n characters of pwcs, or until a nul wide character (L'\0') is encountered. RETURN VALUES The wcswidth() function returns 0 if pwcs is an empty string (L""), -1 if a non-printing wide character is encountered, otherwise it returns the number of column positions occupied. SEE ALSO iswprint(3), wcwidth(3) STANDARDS The wcswidth() function conforms to IEEE Std 1003.1-2001 ("POSIX.1"). NetBSD 10.99 August 20, 2002 NetBSD 10.99