1 /* 2 * Copyright 2010-2011, Oliver Tappe, zooey@hirschkaefer.de 3 * All rights reserved. Distributed under the terms of the MIT License. 4 */ 5 6 #include <wchar_private.h> 7 8 9 int 10 __wcswidth(const wchar_t* wcstring, size_t n) 11 { 12 int width = 0; 13 14 while (*wcstring && n-- > 0) { 15 int w = wcwidth(*wcstring++); 16 if (w < 0) 17 return -1; 18 19 width += w; 20 } 21 22 return width; 23 } 24 25 26 B_DEFINE_WEAK_ALIAS(__wcswidth, wcswidth); 27