wcwidth(3) Library Functions Manual wcwidth(3) wcwidth - (libc -lc) #define _XOPEN_SOURCE /* feature_test_macros(7) */ #include int wcwidth(wchar_t wc); wcwidth() wc. wc 0 . wc (L'\0') 0. -1. wcwidth() wc. attributes(7). +----------------------+------------------------------------+---------------------------------------------------------------------------------------------+ | | | | +----------------------+------------------------------------+---------------------------------------------------------------------------------------------+ |wcwidth() | | (locale) (MT-Safe) | +----------------------+------------------------------------+---------------------------------------------------------------------------------------------+ POSIX.1-2008. POSIX.1-2001. glibc 2.2.5 glibc int wcwidth(wint_t wc); wcwidth() LC_CTYPE . iswprint(3) wcswidth(3) 3 . . : . 6.18 8 2026 wcwidth(3)