Determines the number of printing positions on a display device that
are required for a wide-character string.
Format
#include <wchar.h>
int wcswidth (const wchar_t *pwcs, size_t n);
Arguments
- pwcs
- A pointer to a wide-character string.
- n
- The maximum number of characters in the string.
Description
This function returns the number of printing positions
required to display the first n characters of the string
pointed to by pwcs. If there are less than n
wide characters in the string, the function returns the number of
positions required for the whole string.
Return Values
| x | The number of printing positions
required. |
| 0 | If
pwcs is a null character. |
| -
1 | Indicates that one (or more) of the wide characters
in the string pointed to by pwcs is not a printable
character. |
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