github.com/afumu/libc@v0.0.6/musl/src/ctype/wcswidth.c (about) 1 #include <wchar.h> 2 3 int wcswidth(const wchar_t *wcs, size_t n) 4 { 5 int l=0, k=0; 6 for (; n-- && *wcs && (k = wcwidth(*wcs)) >= 0; l+=k, wcs++); 7 return (k < 0) ? k : l; 8 }