wcwidth

Determines the number of printing positions on a display device required for the specified wide character.

Format 

#include  <wchar.h>

int wcwidth  (wchar_t wc);

Arguments

wc
A wide character.

Description

This function determines the number of column positions needed for the specified wide character wc. The value of wc must be a valid wide character in the current locale.

Return Values
x  The number of printing positions required for wc. 
0  If wc is a null character. 
- 1  Indicates that wc does not represent a valid printing wide character. 

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